Fix build: remove Silverlight 3 tests.

Fix build: remove Silverlight 3 tests that reference XUnit and
Unitdriven which were built for Silverlight 4.
Update Events.Server.cs

+XapFilePath
Update TestResultAggregator.cs

XapFilePath is filled up
Update TRXReport.cs

fill up codeBase
Update SampleTRX_GeneratedFromRealTest.trx

fill up codeBase
Update TestRunResultTests.cs

fill up XapFilePath
Update NUnitXmlReportTests.cs
Update XmlReportTests.cs
upgrading psake
updating dictionary
removing some sl3
Merge branch 't'
Merge remote-tracking branch 'pg/master'