add books
Merge branch 'master' into books
Merge branch 'master' into books
Merge branch 'master' into books
Merge branch 'master' into books
added haml email templates and functions to library_mailer
ignore .DS_Store, closing issue 41
added whenever gem
removed DS_store
merged mailer and removed a few .DS_store files
Merge branch 'master' of https://github.com/Rails-Summer-Project-Noah-and-Matt/Library-Application
add valid attributes to book test
validate book title length, closing issue 44
test invalid attributes in book
pass update books test
Merge pull request #45 from nbirnel/books

Books
change isbn schema plan
remove ratings from reviews in schema plan
one book per cover
installed devise, and generated a devise User model with a admin column