Fixed broken User.lists() API call

API method `lists()` was replaced by `lists_all()`.
Merge pull request #244 from paulofreitas/patch-1

Fixed broken User.lists() API call
Fix update_with_media test

Twitter puts a t.co link in the tweet
Encode track and follow parameters to UTF8. Blindly calling str() will cause a UnicodeEncodeError as the ascii codec is used.
Merge pull request #142 from danfairs/unicode-track-follow

Encode track and follow parameters to UTF8. Blindly calling str()
will cause a UnicodeEncodeError as the ascii codec is used.