removed bad_link variables from the controller test
added a few specs for the image upload
re-migrated with Josh's changes, yet to fix conflicts
created create_from_mentions for user
removed custom create method from tweet model
image model attribute adding - couldnt figure out the mocking of image upload
Merge branch 'tweet' of github.com:aimzatron/feed_engine into link_post_specs
merged conflicts with Josh tweet branch