Merge pull request #74 from heyongjian/ios-style

Ios style
fix bug: issue-9, when quickly open or close ios folder, launcher crash.

add the judgement whether the folder animation is running.
Merge pull request #139 from whuthm/ios-style

fix bug: issue-9, when quickly open or close ios folder, launcher crash.
Merge pull request #140 from lwanghaol/ios-style

wanghao:fix bug issue-26,crash when hide all apps
Merge pull request #75 from heyongjian/ios-style

Ios style
fix bug: issue-27, the icon bg settings has no effect.

remove the icon bg settings item.
Merge pull request #143 from whuthm/ios-style

fix bug: issue-27, the icon bg settings has no effect.
Merge pull request #49 from heyongjian/ios-style

merge pull request