Updated Android project files and documentation

android-project/app/jni/Application.mk

@@ -1,7 +1,8 @@
 
 # Uncomment this if you're using STL in your project
-# See CPLUSPLUS-SUPPORT.html in the NDK documentation for more information
-# APP_STL := stlport_static
+# You can find more information here:
+# https://developer.android.com/ndk/guides/cpp-support
+# APP_STL := c++_shared
 
 APP_ABI := armeabi-v7a arm64-v8a x86 x86_64