Merge pull request #19 from ambitioninc/develop

Update master to 0.5.7
Flake8 cleanup
Documentation clean up
Added connection parameter to Query
Added badges to README
added coveralls
fixed py2.7 tests
Updated cursor call
updated get_cursor test
fixed flake8
Added python3 note in README
Fixed database ordering
Merge pull request #21 from micahhausler/newfeature/query-connection

Newfeature/query connection