adding png files
Merge branch 'master' of https://github.com/hongkunyoo/athere-android

Conflicts:
	google-play-services_lib/project.properties
	res/drawable-hdpi/bg_ground_profile_default.png
	res/drawable-xhdpi/bg_ground_profile_default.png
merge origin master
merge origin master
merge origin master
merge origin master
ground list png upload
ground action bar & tab bar png upload
ground chat png upload
ground member png upload
code dialog png upload
I began applying UI.
Merge branch 'master' of https://github.com/hongkunyoo/athere-android