[Android] Fixes Bug 2041 - can't get SDL_QUIT event...

Thanks to Denis Bernard!

Also, changed the Android manifest so the app doesn't quit with orientation
changes, and made testgles.c exit properly on Android.

src/video/android/SDL_androidevents.c

@@ -82,7 +82,9 @@ Android_PumpEvents(_THIS)
             isPaused = 0;
             
             /* Restore the GL Context from here, as this operation is thread dependent */
-            android_egl_context_restore();
+            if (!SDL_HasEvent(SDL_QUIT)) {
+                android_egl_context_restore();
+            }
         }
     }
     else {