Fix Corner zoom Bug when starting from Intent.

I start the app with:

Intent intent = new Intent(this, ImageViewerActivity.class);
			intent.setAction(android.content.Intent.ACTION_VIEW);
			intent.setDataAndType(Uri.fromFile(new File(info.getLocation())), "image/png");
			startActivity(intent);	

However, there is a corner zoom bug which goes away after the user pans or zooms for the first time.  To fix this.  The suggested code fixes the problem.