Bootstrap performs all steps up to executing builer now.

Builder sends error code on failure now.

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%402496

tools/builder/Main.cs

@@ -44,6 +44,7 @@ namespace builder
 			catch (System.Exception e) 
 			{
 				Console.WriteLine("Build failed: " + e.Message);
+                Environment.Exit(1);
 			}
 		}
 	}