Beta 3 designation
UnitTestNode should subscribe test events on create

Fix no result color displayed on tree node if do not perform expand-collapse-expand actions.
Create empty FormSheetreport from File/New
Merge remote-tracking branch 'origin/reports'
Merged pull request #419 UnitTestNode should subscribe test events on create.
Fix #417: Can add same reference twice
[WIP] xUnit
Add unit test library references to project for different test frameworks