Update README.md
switch to submodules

Conflicts:
	soomla-native/compilations/android/Cocos2dxAndroidCore.jar
	soomla-native/compilations/ios/headers/ios-core
	soomla-native/compilations/ios/libCocos2dXiOSCore.a
	soomla-native/compilations/ios/libSoomlaiOSCore.a
update builds
catch up to the natives
fix compilation errors
small fixes
support changes in levelup
implement Level
fix store domain factories
updated submodules
add customSecret checking
small fix
add build to the repo
fix wrong TAG
add new macroses
Merge branch 'master' into dev
JSONObject cannot contain list of objects, has to be JSONArray
Merge branch 'master' of https://github.com/soomla/soomla-cocos2dx-core
rebuilding java lib after merge
Merge remote-tracking branch 'origin/master' into dev