require gulp to be passed in instead of requiring

gulpfile.js

@@ -1,2 +1,2 @@
 var gulp = require('gulp');
-require('./index.js')();
+require('./index.js')(gulp);

index.js

@@ -1,9 +1,11 @@
 var npmWrapper = require("grunt-npm-helper/lib/npm-wrapper");
 var jsonTransform = require('gulp-json-transform');
 var gutil = require('gulp-util');
-var gulp = require('gulp');
 var publishDeps = [];
-module.exports = function(config){
+module.exports = function(gulp, config){
+    if(!gulp){
+        throw "Please pass gulp as an argument in the first position";
+    }
     config = config || {};
     config.user = config.user || undefined;
     config.password = config.password ||  undefined;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gulp-tasks-npm",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "adds npm install and publish tasks to gulp",
   "main": "index.js",
   "scripts": {
@@ -22,8 +22,10 @@
   "homepage": "https://github.com/tparnell8/gulp-tasks-npm#readme",
   "dependencies": {
     "grunt-npm-helper": "0.0.2",
-    "gulp": "^3.9.1",
     "gulp-json-transform": "^0.3.2",
     "gulp-util": "^3.0.7"
+  },
+  "devDependencies": {
+    "gulp": "^3.9.1"
   }
 }