update tests
add video#search_by_title and tests
update #search_by_title spec
implement video search
adding UI search functionality
changing post to get method
create Video.recent_vidoes method
limiting categories on index page to most recent 6 videos
adding user signup and specs
adding signin and authentication
adding categories show page
refactore based on comments
Merge pull request #1 from dladowitz/feature/week1

Merging in week1 homework