generated post resource
added posts table
assigned attr_accessible attributes to post model
added textarea form styling
added :tag_list virtual attribute and blank setter and getter methods
set actions in the posts controller
added posts form (wip)
added line break after description field on post form
generated tag resource
created tags table
added description column to tags table
set attr_accessible attributes on tag model
set tags' controller actions
added presence validation for :name attribute on the tag model
set default height for form textareas
fixed form errors helper method to be more universal
added whitespace
added uniqueness validation to tag :name attribute
set up create and new actions for tag controller
added new/edit forms for tag model