#1515  Use index support in relations
fix changelog
fix changelog
replaced spaces to tabs
removed unnecessary spaces
Merge branch 'pr/1849'
Additions to #1849.
Merge PR #2705 branch '1849-additions' of https://github.com/resurtm/yii

* '1849-additions' of https://github.com/resurtm/yii:
  Additions to #1849.
  removed unnecessary spaces
  replaced spaces to tabs
  fix changelog
  fix changelog
  #1515  Use index support in relations