Add hackfest stuff from secant
Add unit tests for delete requests
Add metadata requests
Refactor/add unit tests for request classes
Remove redundant/unneeded interface
Refactor to seperate out core client classes from HttpClient stuff
Improve unit test coverage
Add unit tests for LightblueHttpMetadataRequest
Merge pull request #14 from derek63/updatesfromsecant

Updates pulled in from secant hackfest work