Update proxy.py
Update proxy.py

1. spit service args
2. unify string format of event_quene[call_id]['result']
cyberdb/Cloudroid,cyberdb/micROS-cloud,cyberdb/micROS-cloud,cyberdb/micROS-cloud,cyberdb/Cloudroid,zhangpf/cloudroid,zhangpf/cloudroid,cyberdb/Cloudroid,zhangpf/cloudroid