Initial support for Lua script engine

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

@@ -0,0 +1,19 @@
+function main()
+    ret = nil
+
+    num = m.getvar("tx.test");
+    if num == nil then
+        m.log(9, "Don't know what to say about this so called number.");
+        return ret
+    end
+    num = tonumber(num)
+
+    if num > 1 then
+        m.log(9, "Number is bigger than one.");
+        ret = "Whee :)"
+    else
+        m.log(9, "Really?");
+    end
+
+    return ret
+end