add basic documentation
fix base url
Merge pull request #2 from davidrs/old-readme

Old readme
Merge pull request #3 from davidrs/master

add call to api
updates README to include more parameters
Merge pull request #4 from davidrs/master

added todo's
fix typo in lng
changes map from London to DC
adds skeletons of success and error callbacks
Merge pull request #6 from davidrs/alex

pull from Alex