#1 - include <stdlib.h> for malloc

this is not required on OSX but is needed for some linux systems,
also, version bump to 0.1.5

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nodelua",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "Lua Bindings For Node.JS",
   "keywords": [
     "lua"

src/utils.cc

@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include "utils.h"
 
 char * get_str(v8::Local<v8::Value> val){