Initial support for Lua script engine

test/test-cases/data/match-getvar-transformation.lua

@@ -0,0 +1,20 @@
+function main()
+    ret = nil
+
+    var = m.getvar("tx.test");
+    if var == nil then
+        m.log(9, "Don't know what to say...");
+        return ret
+    end
+
+    if var == "FELIPE"
+        m.log(9, "Ops.");
+    elseif var == "felipe"
+        m.log(9, "Just fine.");
+        ret ="ok";
+    else
+        m.log(9, "Really?");
+    end
+
+    return ret
+end