Added update action ok books.
Added create action on books.
Merge pull request #59 from groupbuddies/jj-create-api

Added create action on books.
Removes clearance.
Revert "Removes clearance."

This reverts commit 7173d4e02dcde3c318c94f0bdc57b3c76d0a1b2f.
Revert "Revert "Removes clearance.""

This reverts commit 5a35352564df0ff3bcfd4b0c59c706625b540c37.
Adds devise.
Requires token for valid request.
Refactored http headers in rspec.
Refactor request parser.
Typo.
Refactor user token to middleware.
Removes unecessary code. Makes if inline.
Updates after rebase.