Correction of a bug at the install. If the path provided by --web-path ended...

Correction of a bug at the install. If the path provided by --web-path ended with a '/', the site had wrong home link and jflowserver did not work

bin/ng6_install.py

@@ -44,6 +44,7 @@ if __name__ == '__main__':
     parser.add_argument("--email", type=str, help="",
                         required=True, dest="email")
     args = vars(parser.parse_args())
+    args["web_path"] = re.sub( r"\/$", "", args["web_path"] )
     
     print "Downloading web site source code ..."
     dummy_tmp_zipfile = tempfile.NamedTemporaryFile(prefix = 'dummy_', suffix = '.zip').name