escape single quotes in urls so we don't break signatures
Merge pull request #30 from ifit/single-quotes-fix

escape single quotes in urls so we don't break signatures
Change tests to check image data headers only

The returned image data from the Google Maps services changes
constantly.  This means checking for specific return data is useless.
Simply checking that the data returned is an image should be sufficient.
Fix Chicago test by being a little less specific

Rounds to 3 decimal places, gets the job done.
Update npm install url to be https
Bump version to v0.1.9
Merge pull request #2 from moshen/master

Sync to master