Merge pull request #27 from aguibert/master

Adding support for Contact objects being sent through stream
Login Gui and Load Screen. Just need to implement in Message Host
Multiple user logins as well as an updated system prefs file
Better way to center screens
Logout for Taskbar and Conversation

Doesn't close socket yet so not fully functional

duplicates contacts
Load screen is activated by message host waiting for peer connection
Merge pull request #28 from Hartman2/master

Week of Nov 3rd
Merge pull request #10 from BlueText/master

Take in Andrew's pull request November week 1