Gruntfile partial clean-libraries task
Merge branch 'gh-pages' of ssh://github.com/NPellet/visualizer into gh-pages
Merge branch 'gh-pages' of ssh://github.com/NPellet/visualizer into gh-pages

Conflicts:
	gruntfile.js
Gruntfile modifs: copy modules from custom usr folder
Merge pull request #59 from dkostro/gh-pages

Gruntfile changes