KVM frontend : Add Copyright and explanation

slapos/recipe/generic_kvm_frontend/template/kvm-proxy.js

+/*****************************************************************************
+*
+* Copyright (c) 2012 Vifib SARL and Contributors. All Rights Reserved.
+*
+* WARNING: This program as such is intended to be used by professional
+* programmers who take the whole responsibility of assessing all potential
+* consequences resulting from its eventual inadequacies and bugs
+* End users who are looking for a ready-to-use solution with commercial
+* guarantees and support are strongly adviced to contract a Free Software
+* Service Company
+*
+* This program is Free Software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 3
+* of the License, or (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*
+*****************************************************************************/
+
+/* Wrapper used to configure the httpproxy node package to proxy
+   http://myhost/myinstance
+   to real IP/URL of myinstance
+*/
+
 var fs = require('fs'),
     util = require('util'),
     colors = require('colors'),