feat(demo): Add ability to view .less with each component
chore(demo): Removed styleguide from the project
chore(demo): Removed styleguide from default task
chore(demo): Removed styleguide from package.json
chore(demo): Removed remaining references to styleguide
chore(demo): Added back line in getting started guide about css.
Merge pull request #647 from rackerlabs/646-less-documentation

646 - Add less documentation to demo pages.
test(sinon): fix failing sinon assertions due to dep upgrade