Moved sphinx source database setup into ".sh" file allowing to use relative file path.
Merge pull request #1379 from klimov-paul/travis-sphinx

Allow Travis to be run not only for YiiSoft
improved README of apps.
Merge branch 'master' of github.com:yiisoft/yii2 into mongo
Fixed doc.
prepare for 2.0.0-alpha release.
fixed version.
prepare for next release.
Mongo aggregation functions added as draft.
Merge branch 'master' of github.com:yiisoft/yii2 into mongo