Merge pull request #471 from DefactoSoftware/dependabot/bundler/spring-2.0.2

Bump spring from 1.1.3 to 2.0.2

Author: jurre

Gemfile.lock

@@ -842,7 +842,8 @@ GEM
       temple (~> 0.7.3)
       tilt (>= 1.3.3, < 2.1)
     slop (3.5.0)
-    spring (1.1.3)
+    spring (2.0.2)
+      activesupport (>= 4.2)
     spring-commands-rspec (1.0.2)
       spring (>= 0.9.1)
     sprockets (3.7.2)