Test in other browsers

[jkomoros]

It stopped working again

[jkomoros]

• In safari, the "Join" game dialog doesn't work. It's possible we'll have to move all paper-dialogs to the app element. :-/ Model paper-dialog not working correctly within a polymer-starter-kit app Polymer/polymer-starter-kit#154 (hmmm, but the login dialog in boardgame-user does work... 3rd party cookies?)
• In safari, games like debuganimations that don't have a player-info don't ever load (or it could be the properties() getter) (nah, memory works fine)... nah, it's only debuganimations. missing import?
• In Safari, debug animations doesn't work. In some cases you can see the card flash in the old layout position.
• In safari, if you make a move while an old animation is happening, the new animation doesn't play but it just jumps to final position
• In firefox, "create game" doesn't create game