Add angular-hotkeys lib
Include angular-hotkey to the app
Add play/pause control
Add speed and course control
include time rate increase/decrease
Enable cheat-sheet
Merge branch 'feature/eugene/keyboard-support' of github.com:IanMayo/mustard into feature/eugene/keyboard-support
improve text descriptions
Show all hotkey in cheat-sheet
Change cheat-sheet template to show combination separator
Add css rules
Merge pull request #139 from IanMayo/feature/eugene/keyboard-support

Keyboard support