add a link to Integrating Design (and its source) to the Sites page
fix gemspec version typo
Merge pull request #150 from hilary/add-integrating-design

add a link to Integrating Design (and its source) to the Sites page
Adding instructions for Yeoman.
Merge pull request #154 from leopic/master

Adding instructions for Yeoman
Added $ie-property-hack-prefix option

Added setting to allow the prefix used for IE6/7 propery hacks to be
customised.
Documentation for $ie-property-hack-prefix
Fixed some typos
Merge pull request #163 from rasschaert/master

Fixed some typos in the docs
Removed $ie-property-hack-fix

Reverted to a hard-coded IE6/7 hack prefix, but now using a start-hack
instead of bang-hack.
Merge pull request #162 from djessup/master

Fix for issue #161