updated homepage views
fixed protected_attributes bug

Merge branch 'master' of https://github.com/kexline4710/DBCForum into homepage_and_nav
created nav bar, updated homepage views and session index route
merge in Katy and Tanner's changes

Merge branch 'master' of https://github.com/kexline4710/DBCForum into homepage_and_nav
Merge pull request #9 from kexline4710/homepage_and_nav

Homepage and nav