Fixes #289: Gii module could be submodule of an another module.
ja docs and messages updated
Merge pull request #2279 from softark/docs-ja

ja docs and messages updated
Enhancements to the #2277.

1. Change log line fixed.
2. Attribute names fallback mode: column comments are preferred over column names.
3. Related view altered.
Checkbox state checking forgotten.
Rewrote component property description in the guide
typo
wording fix
Merge pull request #2280 from samdark/guide-more-on-components

Rewrote component property description in the guide
fix typo
fix typo: controler should be controller
Merge pull request #2281 from samsonasik/fix/typo

Fix typo at "CHttpSessionIterator" and "CAccessControlFilter" doc comments.
Merge pull request #2277 from resurtm/gii-column-comments-as-labels

Enh #1928: Gii is now able to use table columns' comments as the attribute labels of a new generated model.
Merge pull request #2259 from gusnips/patch-2

Allow creation of new validators on the fly
 Test case "CModelTest::testAddValidator()" has been fixed.
Method "CDbCommandBuilder::createMultipleInsertCommand()" has been created.
Method "CSqliteCommandBuilder::createMultipleInsertCommand()" has been created.
Method "CDbCommandBuilder::createMultipleInsertCommand()" has been refactored.
Method "COciCommandBuilder::createMultipleInsertCommand()" has been created.
Issue #1604 has been added to CHANGELOG.