added stuff
added user show
Merge pull request #13 from alexcodreanu86/user

User
fixed user show and caught errors if invalid user id is passed
Merge pull request #14 from alexcodreanu86/user

fixed user show and caught errors if invalid user id is passed
added routes for answers
Merge branch 'master' of https://github.com/alexcodreanu86/dev_overflow_dev into user
merging master
Merge pull request #15 from alexcodreanu86/user

User
created nav bar that allows signin, signup, logout, profile, and home. Changes based on session. Deleted excessive devise links.