Merge pull request #11 from 7illusions/master

 Implemented GetLatestItems, GetLatestChannelItems and Playlist
updated nuget
updated nuget
updated nuget
updated nuget
Option to keep existing auth in apiclient
updated nuget
consolidate web socket into ApiClient
updated nuget
add connection manager
finish ConnectionManager
build up connection manager interface
rework server saving
add Device class
update ConnectionManager
update connection manger
update readme
update readme
handle empty addresses
add error handling to server discovery