i18n: added JS extractors to work with the standard extract_messages command.

setup.cfg

@@ -17,7 +17,10 b' output_file = rhodecode/i18n/rhodecode.p'
 msgid-bugs-address = [e-mail]
 copyright-holder = RhodeCode GmbH
 no-wrap = true
-keywords = lazy_ugettext
+keywords =
+    lazy_ugettext
+    _ngettext
+    _gettext
 
 [init_catalog]
 domain = rhodecode

setup.py

@@ -204,6 +204,7 b' setup('
     message_extractors={
         'rhodecode': [
             ('**.py', 'python', None),
+            ('**.js', 'javascript', None),
             ('templates/**.mako', 'mako', {'input_encoding': 'utf-8'}),
             ('templates/**.html', 'mako', {'input_encoding': 'utf-8'}),
             ('public/**', 'ignore', None),