Changing documentation to match Twitter Dev site changes.

git-svn-id: https://plugins.svn.wordpress.org/twitter-stream/trunk@878378 b8457f37-d9ea-0310-8a92-e5e31aec5664
Version Bump

git-svn-id: https://plugins.svn.wordpress.org/twitter-stream/trunk@878380 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme changes

git-svn-id: https://plugins.svn.wordpress.org/twitter-stream/trunk@878381 b8457f37-d9ea-0310-8a92-e5e31aec5664