add img_url column to users table
changed model notes to reflect img_url field in user model
Merge pull request #17 from marklc44/master

add img_url column to users table
Create views for Posts.  Create remaining views for User
Generate post controller.  Build skeleton of post controller
cleanup before pulling upstream
corrected it description on tag model test
Create Polymorphic Comment model
Merge pull request #19 from marklc44/master

corrected an it description on a tag model test
Merge pull request #18 from MooreJesseB/master

Create post views templates.  Generate post controller.
Generate comments controller
Create RESTful views for comment model
Merge pull request #20 from MooreJesseB/master

Comments controller and views