image quality shouldn't be set to 100

[jdeblank]

In mezzanine/core/templatetags/mezzanine_tags.py

image = image.save(thumb_path, filetype, quality=100)

According to the PIL docs (http://www.pythonware.com/library/pil/handbook/format-jpeg.htm):

The image quality, on a scale from 1 (worst) to 95 (best). The default is 75. Values above 95 should be avoided; 100 completely disables the JPEG quantization stage.

When set to 100, thumbnails with smaller proportions can actually have a significantly larger filesize. Maybe needs to be a global setting so it can easily be adjusted? thoughts?

[stephenmcd]

Nice find. We should definitely change it to 95 at the very least.

[jdeblank]

Great solution! Thanks Big D.