* As of .NET 4.5, the default for Any CPU is to "prefer 32-bit process", and you need to explicitly turn this off to require the process be run as 64-bit.
* See http://blogs.microsoft.co.il/sasha/2012/04/04/what-anycpu-really-means-as-of-net-45-and-visual-studio-11/ for details.
* UAT will now assert when Environment.Is64BitProcess is false on startup, as we essentially require 64-bit for certain scripts, and that's how we ran it before upgrading to .NET4.5.
* Also set default optimization options for the project, which were changed at some point.
* Finally, rolled back CL#2633880, which was trying to work around the fact that UAT was running 32-bit.
#codereview:richard.fawcett, ben.marsh
[CL 2634273 by Wes Hunt in Main branch]
we now use an enum similar to UE4 with Fatal, Error, Warning, Display, Log, Verbose, and VeryVerbose
Log will only go to the log file unless -verbose is passed on the command line
reduced some of the output from UAT to be Log only
[CL 2631062 by Peter Sauerbrei in Main branch]
* Remove ErrorReporter.Error, replace with AutomationException with Error Code.
* Move ErrorCodes to AutomationException.
* Don't return exit codes. Solely rely on exceptions to propagate exit codes.
* Remove MainProc delegate
* Remove setting of Environment.ExitCode as it is ignored when main returns an int.
* ShutdownLogging is nothrow, as all exceptions would be ignored anyway.
* Wrap all shutdown steps so further ones get a chance to run.
* Move HostPlatform.Initialize into the global try/catch block
#codereview:ben.marsh
[CL 2605826 by Wes Hunt in Main branch]
