Initial MSSQL tests.
CS fixes.
Merge branch 'master' of github.com:yiisoft/yii2

Conflicts:
	apps/bootstrap/index.php
	yii/yiic.php
Change magic property to normal method. (Thanks to @maxlapko.)
CS fixes.
CS fixes.
Travis-CI build status.
Merge branch 'master' of github.com:yiisoft/yii2 into mssql