diff --git a/package-lock.json b/package-lock.json
index 588beee..7c2c2c0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
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         "grunt-mocha-test": "^0.12.2",
@@ -515,20 +515,11 @@
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-      "integrity": "sha1-z9AeD7uj1srtBJ+9dY1A9lGW9Xw=",
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
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-      "integrity": "sha1-jN2PusTi0uoefi6Al8QvRCKA+Fs=",
-      "engines": {
-        "node": "*"
+        "sprintf-js": "~1.0.2"
       }
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     "node_modules/aria-query": {
@@ -551,6 +542,22 @@
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+    "node_modules/array-each": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/array-each/-/array-each-1.0.1.tgz",
+      "integrity": "sha1-p5SvDAWrF1KEbudTofIRoFugxE8=",
+      "engines": {
+        "node": ">=0.10.0"
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+    "node_modules/array-slice": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.1.0.tgz",
+      "integrity": "sha512-B1qMD3RBP7O8o0H2KbrXDyB0IccejMF15+87Lvlor12ONPRHP6gTjXMNkt/d3ZuOGbAe66hFmaCfECI24Ufp6w==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
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@@ -595,12 +602,9 @@
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-      "resolved": "https://registry.npmjs.org/async/-/async-0.1.22.tgz",
-      "integrity": "sha1-D8GqoIig4+8Ovi2IMbqw3PiEUGE=",
-      "engines": {
-        "node": "*"
-      }
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.3.tgz",
+      "integrity": "sha512-spZRyzKL5l5BZQrr/6m/SqFdBN0q3OCI0f9rjfBzCMBIP4p75P620rR3gTmaksNOhmzgdxcaxdNfMy6anrbM0g=="
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@@ -926,19 +930,6 @@
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-      "resolved": "https://registry.npmjs.org/coffee-script/-/coffee-script-1.3.3.tgz",
-      "integrity": "sha1-FQ1rTLUiiUNp7+1qIQHCC8f0pPQ=",
-      "deprecated": "CoffeeScript on NPM has moved to \"coffeescript\" (no hyphen)",
-      "bin": {
-        "cake": "bin/cake",
-        "coffee": "bin/coffee"
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@@ -956,9 +947,9 @@
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-      "resolved": "https://registry.npmjs.org/colors/-/colors-0.6.2.tgz",
-      "integrity": "sha1-JCP+ZnisDF2uiFLl0OW+CMmXq8w=",
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/colors/-/colors-1.1.2.tgz",
+      "integrity": "sha1-FopHAXVran9RoSzgyXv6KMCE7WM=",
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@@ -1066,9 +1057,9 @@
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-      "integrity": "sha1-sCIMAt6YYXQztyhRz0fePfLNvuk=",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-3.0.3.tgz",
+      "integrity": "sha512-jyCETtSl3VMZMWeRo7iY1FL19ges1t55hMo5yaam4Jrsm5EPL89UQkoQRyiI+Yf4k8r2ZpdngkV8hr1lIdjb3Q==",
       "engines": {
         "node": "*"
       }
@@ -1152,6 +1143,14 @@
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       }
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+    "node_modules/detect-file": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/detect-file/-/detect-file-1.0.0.tgz",
+      "integrity": "sha1-8NZtA2cqglyxtzvbP+YjEMjlUrc=",
+      "engines": {
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-      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
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-      },
-      "bin": {
-        "node-which": "bin/node-which"
-      },
-      "engines": {
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@@ -1248,15 +1233,15 @@
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-      "resolved": "https://registry.npmjs.org/esprima/-/esprima-1.0.4.tgz",
-      "integrity": "sha1-n1V+CPw7TSbs6d00+Pv0drYlha0=",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+      "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
       "bin": {
         "esparse": "bin/esparse.js",
         "esvalidate": "bin/esvalidate.js"
       },
       "engines": {
-        "node": ">=0.4.0"
+        "node": ">=4"
       }
     },
     "node_modules/eventemitter2": {
@@ -1280,6 +1265,22 @@
         "node": ">=0.8"
       }
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+    "node_modules/expand-tilde": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/expand-tilde/-/expand-tilde-2.0.2.tgz",
+      "integrity": "sha1-l+gBqgUt8CRU3kawK/YhZCzchQI=",
+      "dependencies": {
+        "homedir-polyfill": "^1.0.1"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/extend": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
+      "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
+    },
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       "resolved": "https://registry.npmjs.org/extract-zip/-/extract-zip-2.0.1.tgz",
@@ -1413,6 +1414,29 @@
         "node": "*"
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+    "node_modules/fined": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/fined/-/fined-1.2.0.tgz",
+      "integrity": "sha512-ZYDqPLGxDkDhDZBjZBb+oD1+j0rA4E0pXY50eplAAOPg2N/gUBSSk5IM1/QhPfyVo19lJ+CvXpqfvk+b2p/8Ng==",
+      "dependencies": {
+        "expand-tilde": "^2.0.2",
+        "is-plain-object": "^2.0.3",
+        "object.defaults": "^1.1.0",
+        "object.pick": "^1.2.0",
+        "parse-filepath": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/flagged-respawn": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/flagged-respawn/-/flagged-respawn-1.0.1.tgz",
+      "integrity": "sha512-lNaHNVymajmk0OJMBn8fVUAU1BtDeKIqKoVhk4xAALB57aALg6b4W0MfJ/cUE0g9YBXy5XhSlPIpYIJ7HaY/3Q==",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/flat/-/flat-5.0.2.tgz",
@@ -1421,6 +1445,25 @@
         "flat": "cli.js"
       }
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+    "node_modules/for-in": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/for-in/-/for-in-1.0.2.tgz",
+      "integrity": "sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/for-own": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/for-own/-/for-own-1.0.0.tgz",
+      "integrity": "sha1-xjMy9BXO3EsE2/5wz4NklMU8tEs=",
+      "dependencies": {
+        "for-in": "^1.0.1"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
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       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
@@ -1488,6 +1531,11 @@
         "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
       }
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+    "node_modules/function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
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       "resolved": "https://registry.npmjs.org/gaze/-/gaze-0.5.2.tgz",
@@ -1549,11 +1597,11 @@
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-      "integrity": "sha1-BHpEl4n6Fg0Bj1SG7ZEyC27HiFw=",
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/getobject/-/getobject-1.0.2.tgz",
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-        "node": ">= 0.8.0"
+        "node": ">=10"
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@@ -1585,6 +1633,45 @@
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       "integrity": "sha1-ykMJ2t7mtUzAuNJH6NfHoJdb3Js="
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+    "node_modules/global-modules": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/global-modules/-/global-modules-1.0.0.tgz",
+      "integrity": "sha512-sKzpEkf11GpOFuw0Zzjzmt4B4UZwjOcG757PPvrfhxcLFbq0wpsgpOqxpxtxFiCG4DtG93M6XRVbF2oGdev7bg==",
+      "dependencies": {
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+        "is-windows": "^1.0.1",
+        "resolve-dir": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/global-prefix": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/global-prefix/-/global-prefix-1.0.2.tgz",
+      "integrity": "sha1-2/dDxsFJklk8ZVVoy2btMsASLr4=",
+      "dependencies": {
+        "expand-tilde": "^2.0.2",
+        "homedir-polyfill": "^1.0.1",
+        "ini": "^1.3.4",
+        "is-windows": "^1.0.1",
+        "which": "^1.2.14"
+      },
+      "engines": {
+        "node": ">=0.10.0"
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+    "node_modules/global-prefix/node_modules/which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "which": "bin/which"
+      }
+    },
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@@ -1654,33 +1741,31 @@
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-        "coffee-script": "~1.3.3",
-        "colors": "~0.6.2",
-        "dateformat": "1.0.2-1.2.3",
+      "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/grunt/-/grunt-1.5.2.tgz",
+      "integrity": "sha512-XCtfaIu72OyDqK24MjWiGC9SwlkuhkS1mrULr1xzuJ2XqAFhP3ZAchZGHJeSCY6mkaOXU4F7SbmmCF7xIVoC9w==",
+      "dependencies": {
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         "eventemitter2": "~0.4.13",
-        "exit": "~0.1.1",
-        "findup-sync": "~0.1.2",
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-        "lodash": "~0.9.2",
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-        "nopt": "~1.0.10",
-        "rimraf": "~2.2.8",
-        "underscore.string": "~2.2.1",
-        "which": "~1.0.5"
+        "exit": "~0.1.2",
+        "findup-sync": "~0.3.0",
+        "glob": "~7.1.6",
+        "grunt-cli": "~1.4.3",
+        "grunt-known-options": "~2.0.0",
+        "grunt-legacy-log": "~3.0.0",
+        "grunt-legacy-util": "~2.0.1",
+        "iconv-lite": "~0.4.13",
+        "js-yaml": "~3.14.0",
+        "minimatch": "~3.0.4",
+        "mkdirp": "~1.0.4",
+        "nopt": "~3.0.6",
+        "rimraf": "~3.0.2"
+      },
+      "bin": {
+        "grunt": "bin/grunt"
       },
       "engines": {
-        "node": ">= 0.8.0"
+        "node": ">=8"
       }
     },
     "node_modules/grunt-clear": {
@@ -1697,6 +1782,36 @@
         "grunt": "~0.4.1"
       }
     },
+    "node_modules/grunt-cli": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/grunt-cli/-/grunt-cli-1.4.3.tgz",
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+      "dependencies": {
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+        "interpret": "~1.1.0",
+        "liftup": "~3.0.1",
+        "nopt": "~4.0.1",
+        "v8flags": "~3.2.0"
+      },
+      "bin": {
+        "grunt": "bin/grunt"
+      },
+      "engines": {
+        "node": ">=10"
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+    "node_modules/grunt-cli/node_modules/nopt": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/nopt/-/nopt-4.0.3.tgz",
+      "integrity": "sha512-CvaGwVMztSMJLOeXPrez7fyfObdZqNUK1cPAEzLHrTybIua9pMdmmPR5YwtfNftIOMv3DPUhFaxsZMNTQO20Kg==",
+      "dependencies": {
+        "abbrev": "1",
+        "osenv": "^0.1.4"
+      },
+      "bin": {
+        "nopt": "bin/nopt.js"
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@@ -1728,83 +1843,95 @@
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/grunt-known-options/-/grunt-known-options-2.0.0.tgz",
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-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/grunt-legacy-log/-/grunt-legacy-log-0.1.3.tgz",
-      "integrity": "sha1-7ClCboAwIa9ZAp+H0vnNczWgVTE=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/grunt-legacy-log/-/grunt-legacy-log-3.0.0.tgz",
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-        "grunt-legacy-log-utils": "~0.1.1",
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-        "lodash": "~2.4.1",
-        "underscore.string": "~2.3.3"
+        "lodash": "~4.17.19"
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-        "node": ">= 0.8.0"
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-      "integrity": "sha1-wHBrndkGThFvNvI/5OawSGcsD34=",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/grunt-legacy-log-utils/-/grunt-legacy-log-utils-2.1.0.tgz",
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-        "colors": "~0.6.2",
-        "lodash": "~2.4.1",
-        "underscore.string": "~2.3.3"
+        "chalk": "~4.1.0",
+        "lodash": "~4.17.19"
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-        "node": ">= 0.8.0"
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+          "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.1.2.tgz",
+          "integrity": "sha512-VE0SOVEHCk7Qc8ulkWw3ntAzXuqf7S2lvwQaDLRnUeIEaKNQJzV6BwmLKhOqT61aGhfUMrXeaBk+oDGCzvhcug=="
+        }
+      }
     },
     "universalify": {
       "version": "2.0.0",
@@ -6913,6 +7772,14 @@
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
+    "v8flags": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-3.2.0.tgz",
+      "integrity": "sha512-mH8etigqMfiGWdeXpaaqGfs6BndypxusHHcv2qSHyZkGEznCd/qAXCWWRzeowtL54147cktFOC4P5y+kl8d8Jg==",
+      "requires": {
+        "homedir-polyfill": "^1.0.1"
+      }
+    },
     "vargs": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/vargs/-/vargs-0.1.0.tgz",
@@ -7015,11 +7882,6 @@
             "zip-stream": "^4.1.0"
           }
         },
-        "async": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/async/-/async-3.2.1.tgz",
-          "integrity": "sha512-XdD5lRO/87udXCMC9meWdYiR+Nq6ZjUfXidViUZGu2F1MO4T3XwZ1et0hb2++BgLfhyJwy44BGB/yx80ABx8hg=="
-        },
         "bl": {
           "version": "4.1.0",
           "resolved": "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz",
@@ -7101,9 +7963,12 @@
       }
     },
     "which": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/which/-/which-1.0.9.tgz",
-      "integrity": "sha1-RgwdoPgQED0DIam2M6+eV15kSG8="
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+      "requires": {
+        "isexe": "^2.0.0"
+      }
     },
     "wide-align": {
       "version": "1.1.3",
diff --git a/package.json b/package.json
index ef1c64b..954cd79 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "chai": "^1.9.2",
     "chai-as-promised": "^4.1.1",
     "should": "^4.1.0",
-    "grunt": "^0.4.5",
+    "grunt": "^1.5.2",
     "grunt-clear": "^0.2.1",
     "grunt-contrib-watch": "^0.6.1",
     "grunt-mocha-test": "^0.12.2",