Updated NUnit tests to use Assert.That
Sorting out vesion numbering properly
Improved the message for any xml parse errors
Merge branch 'master' into 3.0.4

Conflicts:
	SiteWarmer/SiteWarmer.Core/Properties/AssemblyInfo.cs
Merge branch 'master' into 3.0.4

Conflicts:
	SiteWarmer/SiteWarmer.Core/Properties/AssemblyInfo.cs
Fixed bug in FileLogger
Updated Version Number
Updated Version Number