Reconfigured files. Made bookmarklet larger.
take out address hardcoding (except in the bookmarklet).
Reconfigured files. Made bookmarklet larger.
tweaks to get tests working again.
move third-party JS to vendor folder. Update references.
Minor cleanup: Removed links to PureCSS
Scrape Staples correctly
Merge branch 'freeform_cart_v2_1'

Conflicts:
	public/overlay.html
	[Removed by RV in merge]
basics of lisp-like properties working on cart_items (only, need to expand to other objects, and need many helper functions in the models)
Some improvements in the test
created mixin, and extention to several types
rudiments of new endpoint working for informal creation of cart from email
Merge branch 'master' of https://github.com/18F/C2 into bug151