Fixed CSS for Firefox
WIP: debugging image loading in firefox
removed object URLs and FireFox likes it
Merge pull request #358 from CyberCRI/firefox

Better FireFox support
Clamp image sizes
Auto-resize after puppet wakes up
Normalized stack traces across browsers
Added loading spinner to play game
Added loading screen to embed view
Merge pull request #361 from CyberCRI/firefox-improvements

Firefox improvements
Merge branches 'master' and 'treeRepeat' of https://github.com/CyberCRI/RedWire into treeRepeat