Added UI Design for Login and Food/Recipe pages

Note: Commented out the Sign in page that the rails project used. Still
trying to figure out rails but the links should work.

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Added UI for the web app using bootstrap:
- Login Form
- Navigation Bar
- Food/Recipe Lists

Added some Ajax functionality

added a jquery ui gem and linked the static pages in routes.rb
Merged test-branch1 to master

Changes:
styles.css is now styles.css.scss to work with sass
Merge branch 'master' into Add-model-relationships
- food item belongs to user
- User has many food_items