Merge pull request #49 from indykish/master

Pie chart in the dashboard reports the percentage wrongly.
test
Merge remote-tracking branch 'origin/master'

Conflicts:
	Gemfile.lock
opennebula changes
backup node
backup storage
Merge pull request #51 from indykish/master

Doc changes, demo user bug fixed.
Merge branch 'master' of https://github.com/thomasalrin/nilavu into thomasalrin-master

Conflicts:
	Gemfile.lock
Merge branch 'thomasalrin-master'
Merge remote-tracking branch 'origin/master'
Angular busy 4.0, remove ngAnimate, promiseTracker, Rails 4.1.1