Merge pull request #52 from kgrz/become_sponsor_button

Make the "become sponsor" link into a button
Refactor the charts post. Fix #26

Second attempt at this one.

	modified:   _includes/disqus_comments.html
	modified:   _includes/scripts.html
	new file:   assets/js/script.js
  Extracted the raw JS scripts into a new "script.js" file for easier
  maintenance. Left the Google Analytics portion as is for now.

	deleted:    _posts/2013-10-28-72-talk-proposals-in-total.html
	new file:   _posts/2013-10-28-72-talk-proposals-in-total.md
  After the Jekyll update to ~> 1.2.0 version, the templating is more
  easier and predictable. When using markdown, we can insert YAML
  frontmatter.

	modified:   assets/css/style.css
	modified:   assets/less/style.less
  Remove inline styles for the chart divs and place them into the css
  file.
Merge PR #51 from @kgrz
Adding nilenso to sponsors section
PR #51 :

1. Added less & rubyracer to development group
2. Added rake task for compiling style.less
Merge branch 'master' of github.com:char-star/GCRC2014 into char-star-master

* 'master' of github.com:char-star/GCRC2014:
  Adding nilenso to sponsors section

Conflicts:
	_includes/sponsor-logo-grid.html
	assets/less/style.less
Increase the button size to 60px

Fixes the Nilenso logo crop.