[CDA-67]re-fix exception handling (parent exception) and add according test case
[CDA-68] - Added check for null response when setting headers
Merge pull request #27 from pamval/master

[CDA-68] - Added check for null response when setting headers
[CDA-69]: Path was not being decoded when creating the query parameters
Merge pull request #28 from pamval/master

[CDA-69]: Path was not being decoded when creating the query parameters