thumbnail default storage defined which would intantiate only once and not everytime when it is used
bumped version to 1.5.1
Attribute thumbnail_cleanup work in CHANGES
Revert "bumped version to 1.5.1"

This reverts commit 24fc49c36660fee1d286ee6e2ff00117657bf83c.
Use latest pillow in 1.4 tox tests

A change in the freetype libraries can make compilation of older pil
versions fail (for example, in Ubuntu 14.04)
Merge branch 'master'

Conflicts:
	easy_thumbnails/files.py
Import a whole module rather than object to allow overriding in the tests
Fix tests to use temporary storage for thumbnail_default_storage
Workaround fix for a LazyObject bug in Django 1.7
Performance enhancement for thumbnail default storage
Use Django-style PEP386 compliant versioning
Merge remote-tracking branch 'origin/master'
Bump to version 2.0 and update CHANGES