修复tab切换焦点的bug

2014.12.3,解决edit和webbrowser按tab无法切换焦点的bug
修复tab切换焦点的bug2

2014.12.3,解决edit和webbrowser按tab无法切换焦点的bug
Merge pull request #8 from redrains/master

修复tab切换焦点的bug