Added Flummery.Util.Logger + log UI. Fixes #38
Log window was preventing the main window from closing
Added support for Warn and Error in Flummery.Util.Logger
Didn't actually commit the Logger class and UI!
Merge branch 'InDev-Logger' of https://github.com/art0rz/Flummery into art0rz-InDev-Logger

Conflicts:
	Flummery/Flummery.csproj
	Flummery/frmMain.cs