optional timestamp to post.create

src/posts.js

@@ -30,22 +30,20 @@ var async = require('async'),
 		var uid = data.uid,
 			tid = data.tid,
 			content = data.content,
-			toPid = data.toPid;
+			timestamp = data.timestamp || Date.now();
+
 
 		if (uid === null) {
 			return callback(new Error('[[error:invalid-uid]]'));
 		}
 
-		var timestamp = Date.now(),
-			postData;
-
 		async.waterfall([
 			function(next) {
 				db.incrObjectField('global', 'nextPid', next);
 			},
 			function(pid, next) {
 
-				postData = {
+				var postData = {
 					'pid': pid,
 					'uid': uid,
 					'tid': tid,
@@ -58,8 +56,8 @@ var async = require('async'),
 					'deleted': 0
 				};
 
-				if (toPid) {
+				if (data.toPid) {
-					postData.toPid = toPid;
+					postData.toPid = data.toPid;
 				}
 
 				plugins.fireHook('filter:post.save', postData, next);