updated Python referer_parser to match Java version, added tests
update readme's
Use tox for testing
Allow referer_parser to load alternative JSON files.
Merge pull request #1 from donspaulding/master

Refactor the loading of the JSON files
Version bump.  0.3.0
Merge branch 'master' of https://github.com/emilssolmanis/referer-parser
Merge from snowplow/master.