Added tier support to project page. Improved look&feel of the pages
Changed to show immage for each category. Added .seed.rb file to populate the table category.
Added category selector and hidden logged user fields to new/update project page. Decreased default number of tiers to 1 for now
Fixed Date field on the project page
resolved conflicts
Merge pull request #8 from BrainStationEducation/project_add_edit_page

Added tier support to project page. Improved look&feel of the pages. Resolved conflicts