Correction to the HTTP method to posting snapshot requests

lib/api/snapshot.js

@@ -1,5 +1,3 @@
-snapshot.js
-
 var extend = require('extend');
 var util = require('util');
 var v8type = require('v8type');
@@ -42,7 +40,7 @@ snapshot_api.prototype.add_snapshot = function(snapshot, callback){
 
 
 
-    this.request('POST', '/graph/snapshot', {body: snapshot}, callback);
+    this.request('GET', '/graph/snapshot', {query: snapshot}, callback);
 };