Merge pull request #44 from SteamRiC/refactor_coinflip

Refactor coinflip
Refactor coin and random code
Fixes a Chrome rendering issue by drawing a background rectangle under every frame.
Adds icons
More icons
Icons
CSS for mobile.
Fixed the app so it could process guest as a host when doing a history request as a registered user
Create LICENSE.md
Update README.md
Update README.md
Update README.md