Removed wrong 2.1.5 tag
Set version to 2.1.5
tagged version 2.2.0
tagged version 2.1.5
Changelog for 2.1.5 release.
Merged r11041 from trunk.
Changelog for 2.2.0 release.
Merged r11036 from trunk to 2.2-stable (#12615, #12619)
Russian translation changed by Kirill Bezrukov.
Merged r11035 from trunk to 1.4-stable (#12615)
Russian translation updated by Kirill Bezrukov.
Merged r11035 from trunk to 2.1-stable (#12615)
