fix UnsatisfiedLinkError when quitting

platform/android/java/src/org/godotengine/godot/GodotLib.java

@@ -48,7 +48,7 @@ public class GodotLib {
      public static native void initialize(Godot p_instance,boolean need_reload_hook,String[] p_cmdline,Object p_asset_manager);
      public static native void resize(int width, int height,boolean reload);
      public static native void newcontext(boolean p_32_bits);
-     public static native void quit();
+     public static native void back();
      public static native void step();
      public static native void touch(int what,int pointer,int howmany, int[] arr);
      public static native void accelerometer(float x, float y, float z);

platform/android/java/src/org/godotengine/godot/GodotView.java

@@ -264,7 +264,7 @@ public class GodotView extends GLSurfaceView implements InputDeviceListener {
 	@Override public boolean onKeyDown(int keyCode, KeyEvent event) {
 
 		if (keyCode == KeyEvent.KEYCODE_BACK) {
-			GodotLib.quit();
+			GodotLib.back();
 			// press 'back' button should not terminate program
 			//normal handle 'back' event in game logic
 			return true;

platform/android/java_glue.h

@@ -40,7 +40,7 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_initialize(JNIEnv *en
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_resize(JNIEnv *env, jobject obj, jint width, jint height, jboolean reload);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_newcontext(JNIEnv *env, jobject obj, bool p_32_bits);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_step(JNIEnv *env, jobject obj);
-JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_quit(JNIEnv *env, jobject obj);
+JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_back(JNIEnv *env, jobject obj);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_touch(JNIEnv *env, jobject obj, jint ev, jint pointer, jint count, jintArray positions);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_key(JNIEnv *env, jobject obj, jint p_scancode, jint p_unicode_char, jboolean p_pressed);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_joybutton(JNIEnv *env, jobject obj, jint p_device, jint p_button, jboolean p_pressed);