[OEM-143] changed surgeon list to use a new laser operator model and added an admin system to manage the users in it.
[OEM-143] Temporary fixes to laser admin (made obsolete by 1.6)
Update RELEASE notes
Merge branch 'master' into release/1.6

Conflicts:
	RELEASE
	config/common.php
	controllers/AdminController.php
Merge branch 'master' into develop

Conflicts:
	models/Element_OphTrLaser_Site.php