Merge pull request #86 from RubyLouvre/master

merge from RubyLouvre/onionui
fix dropdown IE6~IE8 bug
Merge branch 'master' of https://github.com/ilife5/avalon.oniui

merge
增加在html中取数据时，对value，text及label的优先级支持
Merge pull request #274 from ilife5/master

fix dropdown IE6~IE8 label bug