Fix query-zanata

Change I2d1638296f264784333ba1745f75490d81b9ca00 overwrote the content
flag and now the script does not return JSON as expected but XML.
Change it to continue returning JSON.

Also, use newer ProjectVersionResource REST API since the old one is
deprecated.

Change-Id: Idf493813d20d40cc92aaaffbe23db227eb1a213a

jenkins/scripts/query-zanata-project-version.py

@@ -36,10 +36,11 @@ def main():
     args = get_args()
     zc = IniConfig(os.path.expanduser('~/.config/zanata.ini'))
     rest_service = ZanataRestService(zc, content_type='application/json',
+                                     accept='application/json',
                                      verify=args.verify)
     try:
         r = rest_service.query(
-            '/rest/projects/p/%s/iterations/i/%s'
+            '/rest/project/%s/version/%s'
             % (args.project, args.version))
     except ValueError:
         sys.exit(1)