add dev dependance for ps-tree, and doc to do list

README.md

@@ -303,25 +303,25 @@ Know more about TAP: [Why I use Tape Instead of Mocha & So Should You](https://m
 # Todo List
 
 - [ ] Contact
--    [ ] Accept a friend request
--    [ ] Send a friend request
--    [ ] Delete a contact
+    - [ ] Accept a friend request
+    - [ ] Send a friend request
+    - [ ] Delete a contact
 - [ ] Chat Group
--    [ ] Create a new chat group
--    [ ] Invite people to join a existing chat group
--    [ ] Rename a Chat Group
+    - [ ] Create a new chat group
+    - [ ] Invite people to join a existing chat group
+    - [ ] Rename a Chat Group
 - [ ] Events
--    [ ] Use EventEmitter2 to emit message events, so we can use wildcard
--        1. `message`
--        2. `message.recv`
--        3. `message.sent`
--        4. `message.recv.image`
--        5. `message.sent.image`
--        6. `message.recv.sys`
--        1. `message.**.image`
--        1. `message.recv.*`
+    - [ ] Use EventEmitter2 to emit message events, so we can use wildcard
+        1. `message`
+        2. `message.recv`
+        3. `message.sent`
+        4. `message.recv.image`
+        5. `message.sent.image`
+        6. `message.recv.sys`
+        1. `message.**.image`
+        1. `message.recv.*`
 - [ ] Message
--    [ ] Send/Reply image message
+    - [ ] Send/Reply image message
     
 Everybody is welcome to issue your needs.
 

package.json

@@ -39,6 +39,7 @@
     "express": "^4.13.4",
     "npmlog": "^2.0.3",
     "phantomjs-prebuilt": "^2.1.7",
+    "retry-promise": "^1.0.0",
     "selenium-webdriver": "",
     "socket.io": "^1.4.5"
   },
@@ -55,8 +56,7 @@
   "devDependencies": {
     "apiai": "^2.0.5",
     "eslint": "^2.9.0",
-    "process-tree": "^1.0.0",
-    "retry-promise": "^1.0.0",
+    "ps-tree": "^1.0.1",
     "tap": "^5.7.1",
     "tuling123-client": "0.0.1"
   }