Merge branch 'master' into Revit2015

Conflicts:
	tools/Output/RevitTestFrameworkInstaller2015.exe
New installer.
Fix MAGN-4448 We should be able to exclude category in Revit TestFrameWork
Merge branch 'Revit2015' of https://github.com/DynamoDS/RevitTestFramework into Revit2015
Merge branch 'MAGN-4448' into Revit2015
Merge pull request #12 from Randy-Ma/Revit2015

Adding option exclude for the Revit2015 branch