added missing global

Author: agalazis

usr/libexec/pi-web-agent/cgi-bin/toolkit/mplayer.py

@@ -16,6 +16,7 @@
 sys.path.append(os.environ['MY_HOME']+'/etc/config')
 from framework import output, view, get_template
 from DependableExtension import DependableExtension
+EXTENSION_ID='Media Player'
 class MediaPlayerManager(DependableExtension):
     def __init__(self):
         DependableExtension.__init__(self, EXTENSION_ID)