Merge pull request #16 from ZhiGuang/master

Fixed issue #15
Merge pull request #1 from Kooboo/dd643b697f23633025fdc1f00071a25f0b30f156

comment the copy command in the build event.
#20: Fixed the wrong UI for Media content selector
Merge pull request #25 from kooboo-jianghao/master

Fixed the #20 issue