TypeError in jsonrpc.py + FIX

[unipi-user]

Hey Com,
I am new to github and i didnt know how to send joshmarshall a msg, so i decided to post here the bug + fix.
I found it when i used the evok api for the unipi.
I already post everything nessesary in the unipi forum, so here the link to it:
http://unipi.technology/forum/viewtopic.php?f=7&t=140#p386

Best regards,
Martin