Changelog for V2.0.2

Add suggestedActions to Activity model to support suggestedActions.

Changelog for V2.0.1

Add supportsDisplay to Entity model to track if Cortana request has a screen or not.

Changelog for V2.0.0

:jose added to application start
Several Activity Model additions - inputHint, code, speak
Update Elixir versions to 1.5 and up
Restructure state handling to be more robust
- If the token gen_server is running in a supervisor process and bot framework is down, won't crash the entire application.
Remove BotState Client and BotData models because they are no longer supported by Microsoft.

Changelog for V1.0.0

Initial release