Back Test Support 2.0.0-alpha-20140812


Continuing support for 2.0
• Beta 4 support (build 2738)
• Shadow copy cache clean up on abort
• Parallelisation re-enabled!

Known issues:
• REQUIRES Beta 4. Will NOT run earlier beta versions
• Runs all tests in a class, not just requested methods, due to xunit1 RunWith compatibility (to be fixed)
• External annotations not yet implemented for xunit2 (to be fixed)
• Live Templates for Theory use xunit1 namespace (to be fixed)