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
Allowing _key to be converted if there is no collisions
LinkedIn::Mash#all returns [] instead of nil when there are no results
Merge pull request #199 from hundredwatt/all_mash_method

Change LinkedIn::Mash#all to return [] instead of nil when there are no results
Merge pull request #198 from kjpatel/feature/group_suggestions

add a method to get group suggestions for a profile
Warning about post_group_discussion
Merge branch 'master' of github.com:kjpatel/linkedin