Merge pull request #2 from JeremiahDJordan/master

Add tbz to extension list
Updated to work with ZenDesks v2 API
Merge branch 'master' of github.com:joaquincasares/zendesk_downloader
Changing response.json to response.json() for compatibility with requests 1.0+
Refactor code into multiple classes.  Add org name to folder name.  Fix files with spaces, and other strange chars messing things up.
Update to use requests library verion 1.0+
Merge branch 'refactor'

Conflicts:
	download
Force to use python2.7