Check if trait was loaded
Removed static variable from autoload per qiangxue's suggestion
refactoring.
Fixes issue #174: make URL parameters available in $_GET.
Merge pull request #195 from suralc/trait-autoload

Check if trait was loaded
Fixed Yii::importNamespaces() bug.
Merge branch 'master' of https://github.com/yiisoft/yii2
Moved "framework" to "iii".
Updated framework paths in composer.json