Changed audio.* Image* imports

so that they no longer import from PIL explicitly.
This is due to explicit PIL.Image* imports failing
on a Ubuntu machine within virtualenv.

PIL is a mystery I have yet to find the energy to unravel.

The 'implicit' approach works both for the affected
machine and my local machine and I've seen it more often
out in the wild, so I'm assuming it is the right way.

extlib/freesound/audioprocessing.py

@@ -20,7 +20,7 @@
 #   Bram de Jong <bram.dejong at domain.com where domain in gmail>
 #   2012, Joar Wandborg <first name at last name dot se>
 
-from PIL import Image, ImageDraw, ImageColor #@UnresolvedImport
+import Image, ImageDraw, ImageColor #@UnresolvedImport
 from functools import partial
 import math
 import numpy

mediagoblin/media_types/audio/transcoders.py

@@ -16,7 +16,7 @@
 
 import pdb
 import logging
-from PIL import Image
+import Image
 
 from mediagoblin.processing import BadMediaFail
 from mediagoblin.media_types.audio import audioprocessing