Merge pull request #8 from MappingKat/front_end_stuff

Front end stuff
Authentication working, need to create env variables still
Fixed auth
updated schema
fixed paths for db:seed
tests work... commented out a few
Added Cart and CartItems
fixed merge error in user_item_spec
Merge pull request #9 from MappingKat/cart

Added Cart and CartItems
Cart controller roughed, needs more expirementing
Make tables for Categories
Merge pull request #10 from MappingKat/cart_controller

Cart controller roughed, needs more expirementing
Merge branch 'master' into formatting_text
Merge pull request #11 from MappingKat/formatting_text

Formatting text
Updated the session[:cart] and Cart methods, started to add Orders routes
Merge pull request #12 from MappingKat/cart_controller

Updated the session[:cart] and Cart methods, started to add Orders route...
Fixed cart routes/controller
Merge pull request #13 from MappingKat/fix_view_to_cart_controller_connection

Fixed cart routes/controller
Add cart functionality: add, remove, increase, subtract items.
Merge pull request #15 from MappingKat/format_the_view

Add cart functionality: add, remove, increase, subtract items.