Added Remove Group Member to API
Merge pull request #39 from DeeZone/RemoveGroupMember_API

Added Remove Group Member to API
Added List Groups to API
Endpoint in place: List Incoming Messages, Create Group, List Groups, Add Group Member, Remove Group Member, List Campaigns, List Campaign Subscribers
Merge pull request #40 from DeeZone/master

Merge all endpoints done to date.
Renames package to mobilecommons
Deprecates helper functions and replaces with scalable alternative.