Show a listing of books on the index

- book needs a name and a 10-13 digit isbn
- create a programming seed book
- add currently empty css and js files
Isbn must be unique
Flesh out index page with buy and sell buttons

- add a few more seed books
Add pry-rails
WIP: Start on buying a book
Added all ux files

Added all styling, bootstrap, html, css for logged out index
Merge pull request #1 from dleve123/add-standalone-template

Added all ux files
converting html, css to *.erb

updating image, media, asset links to rails asset folders
Request to buy a book

- Create a dummy User model and stub out @current_user for now
- Display a flash message with the book requested
A user can request to sell a book
Clean up some whitespace
removing asset pipeline temporarily to fix css. Remove .DS_Store
removing deprecated UX folder
Merge pull request #2 from dleve123/buying-a-book

Buying a book
change name from homeLO to home
Merge pull request #3 from dleve123/integrating-html-to-rails

Integrating html to rails
Merge pull request #4 from dleve123/selling-a-book

Selling a book
Fix book resource to be plural

- redirect to books index after action
style fixes
Merge branch 'master' into adding-users

- redirect to books index if already signed in

Conflicts:
	Gemfile
	Gemfile.lock
	app/controllers/application_controller.rb
	app/models/user.rb
	app/views/layouts/application.html.erb
	config/routes.rb
	db/schema.rb