REFACTOR
----------------

### 1. Use Chrome Puppeteer to control WebWechat.

All codes related with WebDriver/Selenium had been removed.

1. This makes the logic simple: no server, no https endpoint, no WebSocket anymore;
1. Removed lots of Classes, like `PuppetWebServer`, `PuppetWebBrowser`,  `PuppetWebBrowserDriver`, `ssl-pem` and `PUppetWebBrowserCookie` ;
1. Removed all the `Xvfb` packages and settings;

### 2. Upgrade CircleCI from v1 to v2.

Nothing changed except all the YAML syntax of the CircleCI configuration file.

Workflows look very good, maybe set it up later.

### 3. Dockerfile switch from `alpine` to `node:7` image

The size increased hugely. However, this will let us feel better if we want to add more and more packages into our Docker Image: Debian has better support to the packaging ecosystem.

### 4. Drop Node.js v6 support

No special reasons, it's just tooold.

### 5. Use `blue-tape` to do unit testing, with Typing support.

Do not use AVA anymore, do not wait for TAP anymore. They all support TypeScript not well.

### 6. Separate source code related with `watchdog` to a new NPM module.

It's modulized very well and can be used as needed everywhere: https://github.com/zixia/watchdog

### 7. Created a new module `RxQueue` for `throttle` / `debounce` / `delay` tasks.

Consider publishing a solo NPM module in the future.

### 8. Arrange all the WEB JSON data structure

Save them into a single file: `schema.ts`

### 9. A new Class for manage Wechaty Profile

Use it to `new Profile('botName')` and `save()`/`load()`/`get()`/`set` etc.

* fix(*): Support for send 25Mb+ files

1. Upload a file larger than 25Mb.
2. Limit the upload file to no more than 100Mb.
3. According to webwxapp perfect upload processing.
4. Increase the upload and handling of upload exceptions.

* refactor(*): add support download file and send it again

1. add MediaMessage.saveFile() , used to save attachment
2. Refactor MediaMessage.forward(), support send to Room and Contact
array, add support download big file and send it again.

* fix(*): fix reuse data

* dev code

* fix(message): Remove support for foward 25Mb+ files in forward()

Because webWx restrictions, more than 25 MB of files can not be
downloaded, it can not be forwarded.

* fix: fix send files after restart

Closes 777

* feat(MediaMessage): support forward their own upload 25Mb+ file

* style: clean code

* docs: Modify forward support 25Mb+ file descrption

* fix: fix after upload file,display is cancel button

* clean code

* refactor(MediaMessage): Modify saveFile() return Promise<void>

* clean code

* add: Message.forward(id) forward message

You can directly forward files and multimedia, but limit the file size to 25Mb or less, otherwise it will fail because the server policy.

* fix(forward): parameter support Room/Contact/roomId/ContactId

* fix(message): fix some attributes not exist in the WebWxApp structure

* fix(message): fix forward return Promise<boolean>

In addition, some notes are added.

* fix(message) remove suppot forward(id : string)

* fix(message): add a prompt for file size in forward()

* fix(message): add the code to check if rawObj  is undefined

* fix(message): fix msg content error of forward group message

fix: When forwarding a message within a group, the content is prefixed with @userId.

* add(message): Add the Forward Message Source Settings option

```
m.forward(Room.load(id), { user: '$USER', room: 'Room[$ROOM]', custom: 'forward from $ROOM$USER' })

// source message: 'test msg'
// from room: 'testRoom'
// from user: 'Bot'
// forward message: `forward from Room[testRoom]Bot:\ntest msg`
```

* fix(message): only MsgType is TEXT, add forward from info

* fix(bridge): fix only emoji can't forward

* changge(message): move forward()  from class Message to MediaMessage

* fix(message): fix the error of forward room video

In room msg, the content prefix sender:, need to be removed, otherwise the forwarded sender will display the source message sender, causing self () to determine the error

* fix(message): add '{' and '}'

* doc(message): Supplementary forward() of jsdoc comments

resolved #726

* fix(message): fix the comment for forward()

update(license): use @copyright instead of Copyright https://github.com/Chatie/wechaty/pull/725/files#r136114369 (#725)

* fix(puppet-web): send any type file.

Fix can't send pdf and more type file.
Now, you can use `m.say(new MediaMessage(file))` send any type file.

Fix #710

* fix(puppet-web): Delete unused comments

* fix(puppet-web): add interface MediaData

* fix(puppet-web): formData.id Allocation error

* fix(wechaty-bro): remove trailing comma