Added trace messages.
Merge pull request #602 from DsXack/master

Fix create object Asset Bundle with custom class in Bundle config
Yii debugger WIP
Merge branch 'master' of github.com:yiisoft/yii2
change captcha if it's validated.
changed parameter ordering.
Fixed a bug about enabling trace with profiling.
debugger wip
debugger WIP
Merge pull request #2 from yiisoft/master

Merge from yiisoft/master