test driven search_by_title implementation
adding test to test if non matching values are included in the array
DRYing out search_by_title tests using before and context
adding tests to catch nil or empty input strings in title search
rspec tests for recent_videos
adding user model and rspec tests to validate presence of username
implementing front page and register page
completing authentication
redirecting from register_path to home_path if signed_in
Merge pull request #2 from Sessl/week1-part2

Week1 part2