Compile also in armeabi-v7a mode for faster floating point operations.

Android/jni/Application.mk

@@ -1,3 +1,4 @@
 ROOT_PATH := $(call my-dir)/../..
+APP_ABI := armeabi armeabi-v7a
 APP_STL := gnustl_static
-APP_CPPFLAGS += -fexceptions -frtti -Wno-invalid-offsetof -DUSE_OPENGL -DENABLE_PROFILING
+APP_CPPFLAGS += -fexceptions -frtti -Wno-invalid-offsetof -DUSE_OPENGL -DENABLE_PROFILING