updated Sass to 3.2
Use HTTPS for Rubygems

It is now recommended to use HTTPS for connecting to Rubygems.
Merge pull request #1291 from stevenharman/patch-1

Use HTTPS for Rubygems
Merge branch 'master' of github.com:imathis/octopress
Update hero background, home page writeup, enquiry form
Tweak about copy