Fixes #2565. CCaptchaAction + ImageMagick color issue.
Better readability of the colors instantiation code in the CCaptchaAction::renderImageImagick() method.
Better AR docs related to transactions handling.
Merge pull request #2574 from resurtm/ar-transaction-docs

Better AR docs related to transactions handling.
Proper indentation.
views/ja updated
docs/guide/ja/database.ar.txt updated
docs/blog/ja/start.testdrive.txt updated
Merge pull request #2577 from softark/ja-update-2013-06-21

Ja update 2013-06-21