Add Lua to OS X app

Makefile.osx

@@ -7,6 +7,9 @@
 # security unlock ~/Library/Keychains/login.keychain
 # See e.g. http://lists.apple.com/archives/apple-cdsa/2008/Jan/msg00027.html
 
+# Civetweb features
+WITH_LUA = 1
+
 PACKAGE = Civetweb
 BUILD_DIR = out