Fixing unit test failure related to DateTime parsing.
Merge pull request #338 from kfuglsang/develop

Fixing unit test failure related to DateTime parsing.
code cleanup in Dynamics NAV helpers
Code cleanup in SCP
Code cleanup in XpkgHelper
Code cleanup in ILMergeHelper
Merge branch 'develop' of https://github.com/fsharp/FAKE into develop

Conflicts:
	src/app/FakeLib/DynamicsNavHelper.fs
Code cleanup in EnvironmentHelper
Code cleanup in RegistryHelper
Code cleanup in FileSystemHelper
Code cleanup in StringHelper
Code cleanup in TemplateHelper
Code cleanup in XMLHelper
Code cleanup ALL THE THINGS!
Code cleanup ALL THE THINGS!
New Nuget helper allows to install packages
New Nuget helper allows to install packages
New Nuget helper allows to install packages to ./packages
Fixing docs
Fixing version parameter