Added new project (that should have gone in with the last commit!!) to:
Added new project (that should have gone in with the last commit!!) to:

* update tools\NuGet.exe if it exists (nuget.exe update -Self)
* download nuget.exe into tools if it does not exist
* perform a nuget restore on the solution so all packages are available for compilation

Jeff-Lewis/elmah,Jeff-Lewis/elmah