Merge pull request #18 from makinacorpus/master.

Renamed main script and refactored module
pretty print metadata.json
add to install instructions
actually start passing options to utility functions, commend the --window option because it does not appear implemented currently
gitignore
add support for dumping out interactivity data - closes issue #7
Tagging a 0.0.2 to bring in lots of changes to the distributed version
if importing tiles from filesystem, handle only png/jpeg, and add support for requesting osm tiling scheme (flipped y vs TMS) - closes issue #21
Merge branch 'master' of github.com:mapbox/mbutil
Avoid exception if grids table doesn't exist
Merge pull request #24 from rouault/master

Avoid exception if grids table doesn't exist
Updates to v0.1.0
Join paths correctly, look for metadata in tests
Update wording
Add patch
Scheme option expects 'xyz' not 'osm'
fix var name
Merge pull request #29 from manelclos/master

fix var name
add test to check extracting utf8grid data
Merge pull request #30 from manelclos/master

test extracting utf8grid data