Jquery client + REST server

- smal modification of REST server : CORS
- jQuery Client : AJAX query for arduino list, send blink command,
retrieve JSON answer
created BACKUP for actual jquery client (index.html + js script)
- update jQmobile to 1.4.0
Merge branch 'master' of https://github.com/yjajkiew/projet-ei5

Conflicts:
	jQuery_client/js/jquery.mobile-1.4.0