Revert "Running unit and acceptance tests in parallel"

This reverts commit aa22c471e728e98a4232c77784470606e4ba8087.

Conflicts:
	scripts/Appccelarate_build.ps1
Revert "Fixed MSpec build script for teamcity. No always output HTML regardless if teamcity or not"

This reverts commit 4a874e5757f576e6da4a3e6bcc1be2683ee4af44.

Conflicts:
	scripts/Appccelarate_build.ps1
Replaced nuget.targets with pepita which significantly improves the nuget bootstrap time. More details see: https://gist.github.com/SimonCropp/4984933  and https://github.com/SimonCropp/Pepita
Upgrade MSpec
Upgrade Rhino ServiceBus
Upgrade NServiceBus
Upgrade FakeItEasy
Upgrade Automapper
Upgrade MassTransit