Enhance CJSON with JsonSerializable support (#2540)
Encoding a JsonSerializable object will now have it's serializable result
encoded by CJSON.
Added a guard to prevent the autoload bug as mentioned by @cebe.
Added unit test.
2887 Add __isset method for CFormElement
Fix indention from spaces to tabs in CFormElement
Add bug #2887 to CHANGELOG
updated phpdoc and input types list in CFormInputElement
Merge pull request #2896 from gureedo/form-update

updated phpdoc and input types list in CFormInputElement
Add Norwegian translation messages for zii.php
Merge pull request #2897 from atmoz/master

Add Norwegian translation messages for zii.php
Fixes #2908 adding insertMultiple to Migrations
Merge pull request #2909 from luislobo/2908-Add-insertMulti-to-Migrations

Fixes #2908 adding insertMultiple to Migrations
Merge pull request #2891 from bijibox/2887-cformelement-__isset

#2887 Add __isset method for CFormElement
Merge branch '2540-CJSON-JsonSerializable' of https://github.com/SamMousa/yii into SamMousa-2540-CJSON-JsonSerializable
Merge branch '2540-CJSON-JsonSerializable' of https://github.com/SamMousa/yii into SamMousa-2540-CJSON-JsonSerializable
Property 'CErrorHandler::exception' added to store current handling exception instance
Issue #1593 added to CHANGELOG
Added support for scopes in CStatRelation
Issue #873 added to CHANGELOG