Nan 2.0 changed api. Set required Nan version to 1

clintar · clintar · commit eefe9b790f4f · 2015-08-19T00:13:19.000-06:00
diff --git a/package.json b/package.json
@@ -12,7 +12,7 @@
     },
     "dependencies" : {
         "bindings" : "*",
-        "nan" : "*"
+        "nan" : "1"
     },
     "keywords": [
         "cryptonight",
