[OpenID] Added synchronization button and corresponding action

[OpenID] Added synchronization button and corresponding action

UI:
- "Delete" area is now "Actions" area
- Updated themes to better reflect the changes

Routes:
- index.php?action=finishsyncopenid => finishsyncopenid

Translations:
- Updated OpenID translation files
- Updated OpenID POT file

Versioning:
- Bump OpenID minor version
- Bump GS patch version

Why would have labeling the Synchronize button of Sync been of bad taste? - answered by XRevan86:

In "synchronise" "ch" is a digraph meaning /k/ (actually /x/ turned into /k/ in English but whatever).
So… not separate letters.
It's like "ph" in "alphabet", or "sh" in "sheep", or "ch" in "chop" -- "ch" can mean a whole variety of sounds.