#1515  Use index support in relations
fix changelog
fix changelog
replaced spaces to tabs
removed unnecessary spaces
Merge branch 'pr/1849'
Additions to #1849.
use the preffered method of creating an unique index in postgresql as suggested by the manual
reverted #2048 as it breaks logic in createFindCommand()

fixes #2884
fixed wrong dependency in unit test
added unit test for #2884
added changelog line for #2884
Add options parameter to CListView beforeAjaxUpdate. Fixes #2912
Update CHANGELOG
Updated Russian guide
Fixed typos in Russian docs
Fixes #3182: Added namespace support for controllers in subdirectories
Fixed an issue with Filehelper and not accessable directories

which resulted in endless loop

http://www.yiiframework.com/forum/index.php/topic/50982-cfilehelper-bug-security-flaw/
doc fix, fixes #3169
doc fix, fixes #3178