Pillow test_requirement match setup.py
Installing pexif from untrusted source
Merge pull request #278 from scorphus/master

Correctly call engine's paste method (fixes #273)
Merge pull request #263 from robolson/master

Pillow dep in test_requirement should match setup.py
Initial version of a convolution matrix filter, groundwork for future gaussian blur and edge detection filters.
Backup FILTERS_AVAILABLE prior to changing it (fixes #279)