only `bundle install` on travis once
cache gems on travis
have travis construct bundle command
minor readme fixes
cache node modules
simpler travis cache config
fix condition for bundle install
508 fixes. Bug fixes.
Refactor so price validation is testable. Add tests for price validation.
unescape potential alt tag
Merge pull request #68 from 18F/79210798_speed_up_travis

[#79210798] speed up Travis
add instructions for setting up MyUSA config
remove commented out colors.
Merge pull request #69 from 18F/81049552_cartmaker508

81049552 cartmaker508
Moved the styles out of communicart email base

Conflicts:
	app/assets/stylesheets/communicarts.css.scss
	app/views/layouts/communicart_base.html.erb
Updated the main communicart styles that will be shared with the emails
Moved markup into partials
Feature flag comments until we redesign comments on cart item level
Pulled out header styles
Added icons to links