Merge pull request #12 from lwanghaol/master

wanghao:set the default values for icon size or text size
Merge pull request #12 from heyongjian/master

huangming:merge the main branch to native branch.
huangming: add the apps show or hide and menu item enabled functions for joy launcher.
Merge pull request #13 from whuthm/master

 huangming: add the apps show or hide and menu item enabled functions for joy launcher.
Merge pull request #8 from heyongjian/master

merger