Add translator comments for new resign dialog
Fixup: remove gear menu button from size group

This button no longer exists and is causing a warning
Disable new game action before first move

Otherwise, pressing this button does nothing
Add access key for new game button
Fix translator comment in preferences dialog
Preferences: add missing mnemonics
Fix another translator comment
Updated Slovenian translation
Do not unpause the game when the engine moves

Instead, wait until the player unpauses the game, and only then report
the move.

https://bugzilla.gnome.org/show_bug.cgi?id=726949
Updated Brazilian Portuguese translation
Update French translation