Added tests and functions to do a singular email search.
Added multi-email support and testing.
Added an example invocation.
Added unauthorized test and cassette.
Cleaning up trailing spaces.
Fixed unauthorized response test.
Removed underscores from test describes.
Addressed response body from an unauthorized request.  Addressed url path for calls to email.
Merge pull request #197 from brentkastner/master

Added support for LinkedIn Joint Member Identification Program