mussel,test: enable to set DCMGR_CLIENT_ADDR.
mussel,test: remove unnecessary code.
mussel: add DCMGR_CLIENT_ADDR to global variable.
mussel,test: replace api_client_addr with DCMGR_CLIENT_ADDR.
mussel,test: replace DCMGR_CLIENT_ADDR value with 127.0.0.1.
Merge pull request #266 from axsh/feature-mussel-client-addr

Feature mussel client addr