setting up basic navbar and integrating bootstrap features
added urls to navbar, and made the list page, default for items & shelves
implemented more bootstrap css, and added links to the navbar.  Now you can navigate without needing to know the exact url
Merge branch 'dev'

* dev:
  implemented more bootstrap css, and added links to the navbar.  Now you can navigate without needing to know the exact url
  added urls to navbar, and made the list page, default for items & shelves
  setting up basic navbar and integrating bootstrap features