depend on amalg.lua to produce a single binary, fix #10

bin/moonbuild.lua

@@ -349,7 +349,8 @@ local buildscope = {
       insert(tdeps, f)
     end
     return BuildObject(name, tout, tin, tdeps, params.fn)
-  end
+  end,
+  Command = Command
 }
 for k, fn in pairs(util) do
   buildscope[k] = fn

bin/moonbuild.moon

@@ -146,6 +146,7 @@ buildscope=
 			insert tin, f
 			insert tdeps, f
 		BuildObject name, tout, tin, tdeps, params.fn
+	:Command
 buildscope[k]=fn for k, fn in pairs util
 
 setmetatable buildscope,