find function on string(rsp) will either return +ve or -ve (-1) in failure case
comparing with None will not go into else part any time.
unit tests for config file, currently code coverage is 50%
added more test cases, coverage is not 67%
Merge pull request #134 from shermdog/unit-tests

Updates for Travis
Merge pull request #136 from shermdog/unit-tests

Unit tests cherry-picked from Nitin
Merge remote-tracking branch 'upstream/unit-tests' into unit-tests
reverted back changes in config.py and changed corresponding test cases
code coverage 100%. Completed unit test cases for config.py
unit test cases for rpcmeta.py
Merge pull request #137 from vnitinv/unit-tests

Unit tests for config.py