Merge pull request #2 from shanghaiellen/shipping

Shipping
adds conditional to products index
adds conditional to application html
Merge pull request #3 from shanghaiellen/shipping

adds more sweet js to switch between tabs for the fastest and the cheape...
Merge branch 'master' of github.com:shanghaiellen/sloth_express

Conflicts:
	app/views/layouts/application.html.erb
	db/schema.rb
add comment
sends post request to ship
Merge pull request #4 from shanghaiellen/bridge

sends post request to ship
add dimension string method
migrate db
update gemfile, use httparty
makes external api call
add div
cleanup comment
Merge pull request #5 from shanghaiellen/orderhash

Looks great! Great work!
minor tweaks to billing
Merge branch 'master' of github.com:shanghaiellen/sloth_express into shipping
formats all shipping
better formatted and fixes value-in-pennies issue
fixes billing display, adds billing display of cheapest and fastest, and refactors estimate method