Fixes #79 - node.js 0.10.x compatibility.
Version 0.10.2.
Merge branch 'master' of github-gs:GoalSmashers/clean-css
Fixes #83 - HSL to hex color conversions.
Fixed spec duplication in tests.
Reworked RGB to hex conversions.
Adds node.js 0.10 to a list of tested node.js versions @ Travis.
README.md: minor improvements.

* link to /test/bench.js
* break a few long lines
* specify the language used in code blocks
History.md: link to the files in the repo
Use "node.js" name instead of "node"
normalize end lines
test: style consistency changes and simplify quotes
style consistency changes