False positive results when running Bootstrapper

[Larusso]

The Bootstrapper fails only with exit code -1 if the to be downloaded program file doesn't exist.
In case of IO errors with corrupted files means we have a false positive.

Paket.Unity3D/src/Paket.Unity3D.Bootstrapper/Program.cs

Lines 132 to 139 in 1b233e5

	catch (Exception exn)
	{
	if (!File.Exists(target))
	Environment.ExitCode = 1;
	var oldColor = Console.ForegroundColor;
	Console.ForegroundColor = ConsoleColor.Red;
	Console.WriteLine(exn.Message);
	Console.ForegroundColor = oldColor;

We should check the file checksum with the value provided by github.

[marcolink]

@Larusso should we close it? 😄

[Larusso]

Well it's been a while haha