Fixed Problems related to wpMail, wpAdmin menubar. Fixed Permission issues on some site. Now wp-optimize.pot file is added to language directory, for the translators. That file is also linked at the info tab of the plugin. Russian and German translation update.

git-svn-id: https://plugins.svn.wordpress.org/wp-optimize/trunk@900639 b8457f37-d9ea-0310-8a92-e5e31aec5664