category page now includes product images
Merge pull request #25 from SimpleReviews/media

category page now includes product images
added sign out and sign up links
fix navigate url
fixed sign up form validation
Merge branch 'master' of https://github.com/SimpleReviews/core-app
Merge branch 'liampurcell' of github.com:SimpleReviews/core-app into liampurcell
changed to username display in navbar