-Removed ANT build system for Android, as it was deprecated by Google

-Added new Gradle build system, as it is the required build system

platform/android/detect.py

@@ -106,10 +106,6 @@ def configure(env):
 		#env['SPAWN'] = methods.win32_spawn
 		env['SHLIBSUFFIX'] = '.so'
 
-	#env.android_source_modules.append("../libs/apk_expansion")	
-	env.android_source_modules.append("../libs/google_play_services")	
-	env.android_source_modules.append("../libs/downloader_library")	
-	env.android_source_modules.append("../libs/play_licensing")	
 
 	neon_text=""
 	if env["android_arch"]=="armv7" and env['android_neon']=='yes':