Release version 1.0

Version 1.0 will include:

• use of Django 2.2 throughout
• authenticate WAMP users by password or other unique identifier
• include Chat support

Work remaining to done before release includes:

• triple performance of the Django 2.2 version of simpl-games-api so it matches performance of the Django 1.11 version. (Performance tune v1.0.0-RC branch simpl-games-api#37)
• update simpl-games-api model diagram to include Chat models (Update model diagram to include Chat models simpl-games-api#41)
• update simpl-modelservice profiling to use the 1.0 authentication. (Update profiling to authenticate using user password simpl-modelservice#39)
• update simpl-ui-cookiecutter to use the 1.0 authentication. (Update to use 1.0 authentication simpl-ui-cookiecutter#11)
• update simpl-calc-ui to use the 1.0 authentication. (Update to use 1.0 authentication  simpl-calc-ui#23)
• update simpl-calc-model to use the 1.0 authentication. (Update to use 1.0 authentication simpl-calc-model#4)
• update simpl-div-ui to use the 1.0 authentication. (Update to use 1.0 authentication  simpl-div-ui#24)
• update simpl-div-model to use the 1.0 authentication. (Update to use 1.0 authentication  simpl-div-model#4)
• update simpl.world.website docs to use the 1.0 authentication. (Updates docs for Simpl 1.0 authentication simpl.world.website#105)
• update simpl.world.website docs to include chat models and usage. (Updates docs for Simpl 1.0 Chat simpl.world.website#106)