Add the warning notification when the user opens a doc twice
Merge github.com:MatthieuNICOLAS/mute-demo into test

Conflicts:
	.gitignore
	README.md
	app.js
	assets/css/awareness.css
	assets/css/less/awareness.less
	assets/js/ace
	assets/js/awareness-adapter.js
	assets/js/mute-client
	assets/js/zeroclipboard
	offline/doc.html
	offline/list.html
	package.json
	views/code.ejs
	views/css.ejs
	views/history-viewer.ejs
	views/home.ejs
	views/menu.ejs
	views/private-editor.ejs
	views/script-dbjs.ejs
	views/scripts-editor.ejs
Merge the repo's content and the current deployed branch
Remove MUTE's config file
Merge pull request #2 from MatthieuNICOLAS/test

Test
Add username management's module
Merge github.com:MatthieuNICOLAS/mute-demo
Update dependencies
Change the conf file
Revert from 'connexionID' to 'version' to handle multiple connexions from one user
Debug multiple connexions from one user
Add the username's module to the homepage
Made the collaborators list collapsable
Update the username's module
Update mute-client submodule
Remove credentials from config file
Ignore mute.conf and .openshift
Try change mute.conf