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 remote-tracking branch 'octopress/master'
update Gemfile.lock
add new wiki entry
add new wiki entry
add new wiki entry
misc update