Fixes for Roundcube 1.0RC

 - Fix for comments on GitHub Issue #10
Added basic classic skin support

 - Fix for comments on GitHub Issue #10
Localization updates

 - Fix for comments on GitHub Issue #10
 - added russian translation provided by @urusha
 - made criterias translatable
Bump version
Merge branch 'master' into stable

Conflicts:
	advanced_search.php
New minified JS