Images cannot be scaled higher than their original dimensions. This limit is in place to prevent pixilation.

commit cbb84bfc873fe51064cc4d54e570a25257074de7
Merge: 7cc4ded 2d33d7f
Author: Eloy Zuniga Jr <eloyz.email@gmail.com>
Date:   Thu Feb 21 17:19:05 2013 -0600

    Merge branch 'refs/heads/master' into 426_prevent_image_upscaling

    Conflicts:
    	tendenci/addons/photos/models.py

commit 7cc4ded2d4a11a1dd9650d91ee5684a3455febfe
Author: John Eddie Ayson <je@bixly.com>
Date:   Fri Nov 30 14:15:56 2012 +0800

    added checker to prevent image upscaling