Bump to version 1.9

Version 1.8

Release 1.7.1

Version 1.7

Increment version # and update changelog.

Changelog file is no longer being maintained.
Github compare views will replace it.

Bump version to 1.5 for upcoming release.

update setup.py

Added tests for list methods.

Add link to tweepy's wiki in readme.

Increment version to 1.1