Merge remote-tracking branch 'upstream/master'

* upstream/master: (65 commits)
  Developer Garage
  README: Add rdiscount as a dependency
  Solita Dojo announcement
  readme improvement, again
  osx/linux installations improvement
  foreman upgrade + nex syntax for jekyll
  readme updated, foreman+compass versions locked
  let binding
  minor corrections
  on clojure, lisp and languages in general
  Updated Gemfile to reflect current Github versions, updated Readme, maruku is buggy so change to rdiscount for markdown
  Re-enable Pygments
  See if build succeeds with Pygments disabled
  base.html: Change non-ASCII characters to HTML entities
  Edit to force rebuild of solita.github.com
  New post: What's in a Good Commit?
  Fix Disqus bug - Now it can handle multipe domains.
  Image instead of subheading
  Some additions
  Fix backtick formatting
  ...
Library updates
New post: Pimp My REPL
Merge pull request #71 from n1koo/master

Library updates (better error handling and reporting in jekyll + liquid)
Merge pull request #72 from noidi/pimp-my-repl

New post: Pimp My REPL
pimp-my-repl: Fix closing parens in code snippets