Cleans code and removes useless files
Merge branch 'master' of github.com:ekylibre/ekylibre and cleans code

Conflicts:
	app/helpers/application_helper.rb
	config/locales/arb/action.yml
	config/locales/eng/action.yml
	config/locales/fra/action.yml
	config/locales/jpn/action.yml
	config/locales/spa/action.yml
	config/modules.xml
	config/rights.yml