added metalua.lua to rockspec install list

metalua-compiler-0.7.2-1.rockspec

diff --git a/metalua-compiler-0.7.2-1.rockspec b/metalua-compiler-0.7.2-1.rockspec
index a1c1874..92ca1e1 100644
--- a/metalua-compiler-0.7.2-1.rockspec
+++ b/metalua-compiler-0.7.2-1.rockspec
@@ -30,6 +30,7 @@
 build = {
     type="builtin",
     modules={
+        ["metalua"] = "metalua.lua",
         ["metalua.compiler.bytecode"] = "metalua/compiler/bytecode.lua",
         ["metalua.compiler.globals"] = "metalua/compiler/globals.lua",
         ["metalua.compiler.bytecode.compile"] = "metalua/compiler/bytecode/compile.lua",