upgrade rc-tooltip

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rc-slider",
-  "version": "1.3.1",
+  "version": "1.4.0",
   "description": "slider ui component for react",
   "keywords": [
     "react",
@@ -17,6 +17,10 @@
   "bugs": {
     "url": "http://github.com/react-component/slider/issues"
   },
+  "files": [
+    "assets/*.css",
+    "lib"
+  ],
   "licenses": "MIT",
   "main": "./lib/index.js",
   "config": {
@@ -24,13 +28,11 @@
   },
   "scripts": {
     "build": "rc-tools run build",
-    "precommit": "rc-tools run precommit",
-    "less": "rc-tools run less",
     "gh-pages": "rc-tools run gh-pages",
-    "history": "rc-tools run history",
     "start": "node --harmony node_modules/.bin/rc-server",
-    "publish": "rc-tools run tag",
+    "pub": "rc-tools run pub",
     "lint": "rc-tools run lint",
+    "karma": "rc-tools run karma",
     "saucelabs": "node --harmony node_modules/.bin/rc-tools run saucelabs",
     "browser-test": "node --harmony node_modules/.bin/rc-tools run browser-test",
     "browser-test-cover": "node --harmony node_modules/.bin/rc-tools run browser-test-cover"
@@ -39,16 +41,16 @@
     "expect.js": "0.3.x",
     "precommit-hook": "^1.0.7",
     "rc-server": "3.x",
-    "rc-tools": "3.x",
+    "rc-tools": "4.x",
     "react": "^0.13.x",
     "node-dev": "2.x",
     "jquery": "^1.11.2"
   },
   "precommit": [
-    "precommit"
+    "lint"
   ],
   "dependencies": {
-    "rc-tooltip": "^2.4.0",
-    "rc-util": "^2.0.2"
+    "rc-tooltip": "2.x",
+    "rc-util": "2.x"
   }
 }