Upgrade dependencies

package.json

@@ -4,7 +4,8 @@
   "description": "Gulp plugin to use uglifycss",
   "main": "index.js",
   "scripts": {
-    "test": "./node_modules/.bin/jshint index.js && ./node_modules/.bin/mocha -R spec"
+    "lint": "./node_modules/.bin/jshint index.js",
+    "test": "./node_modules/.bin/mocha -R spec"
   },
   "repository": {
     "type": "git",
@@ -26,13 +27,13 @@
   "homepage": "https://github.com/rezzza/gulp-uglifycss",
   "dependencies": {
     "gulp-util": "^3.0.1",
-    "lodash.defaults": "^2.4.1",
-    "through2": "^0.6.3",
+    "lodash.defaults": "^3.1.2",
+    "through2": "^2.0.0",
     "uglifycss": "^0.0.18"
   },
   "devDependencies": {
-    "jshint": "^2.5.10",
+    "jshint": "^2.9.1-rc1",
     "mocha": "^2.0.1",
-    "should": "^4.3.1"
+    "should": "^7.1.1"
   }
 }