Card numbering support for the 13PAX set.
Move the "click outside to apply password" message closer to the box.
Update the URL bar with a deeplink to the current game, and process these deeplinks when the app loads. Fixes #30.
Fix reloading page when inside a game from trying to rejoin the game twice. Fixes #30, again.
Merge branch 'upstream' into blanks
Bugfix: assign unique (negative) ids to blank cards; previously the wrong card could win if multiple blanks were being judged in the same round.