Adapt to requests >= 1.0
Merge pull request #54 from fredj/requests

Adapt to requests >= 1.0
Use pillow in place of PIL.
Now it's possible to have tilecorrds from the top left corner.
Support it on MBTilesTileStore.
Allows to drop empty UTFGrid tiles.
Merge pull request #55 from sbrunner/drop-empty-utfgrid

Allows to drop empty UTFGrid tiles.
Merge pull request #56 from sbrunner/mbtile-origin

Now it's possible to have tilecorrds from the top left corner.
Merge pull request #57 from sbrunner/pillow

Use pillow in place of PIL.
Work around pendantic pyflakes
Read install_requires from requirements.txt, thanks @sbrunner
Add missing content_type to metatile splitter
Merge pull request #58 from sbrunner/contenttype-meta

Add missing content_type to metatile splitter
Add missing return tile on put_one in SQS store
Merge pull request #59 from sbrunner/sqs-return-tile

Add missing return tile on put_one in SQS store
test to figure out if resolutions are long and not int
Merge pull request #60 from asaunier/long-resolutions

Test to figure out if resolutions are long instead of integer
Mode 'binary' is required when reading/writing tiles on Windows
Merge pull request #61 from asaunier/windows-binary

Mode 'binary' is required when reading/writing tiles on Windows
delete_one shouldn't fail if the tile don't exists on bsddb tile store
Use Pillow in the tests