Rails upgrade and Opnlibrary API
Fixing the search method for book and some blank string issues.

This fixes to main data for book search and lookup. Need another call
for api to get som other values like book cover etc...
Added the fields olida and olidb to book model
Fixed data type for olida and olidb
Successfully linked a book with user through collections
View for users current book list
Form fix for adding a book to users collection
Allow users to add books and abandon books
Users can tag the books as finished
Show reading status for user if user is reading the book
Update of devise views for rails4
Added the status field to books
Added olid data for the author to book model
Dropped tables not in use
Cleanup after removing collections model
Merge pull request #1 from gwenzlau/openlibrary-api

Openlibrary api