add video_url reader to post model
change new post redirect to return to posts
add MVP controls to header
add link to user's videos
change times to readable for user posts
remove email from user post and creat link for post author
Merge pull request #10 from ctorstens/development

Development
clean up show post page
add redcarpet to gemfile
change post content migration to text from string
add markdown support for post content
add 'submit post' link to posts page
add image_url to user model attr_accessibles
Fix comment ajax to erase the old value
Merge branch 'development' of https://github.com/ctorstens/ScreenOverflow into form_validation
cleaned up seed and Gemfile
removed debugging statements
removed debugging statements again
fixed merge conflicts
moved vote method from model to votescontroller, merged with development branch