add user view
add image_url
Merge pull request #2 from ctorstens/development

Development
created user view with tags and videos
delete
fixed merges
changed spec test file from question to post
implemented the act_as_commentable gem, droped and remigrated the comments table, fixed seedfile to work with the gem.
fixed merge conflict in gemfile
implementing comments, merge conflict
commentable working fully, feature/post_spec test pending
deleted extra migration file
fixed merge conflict in post show