* 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)

* add doc

* remove useless doc

* change as request

* remove private

* add doc

* add docs index

* add todo & desprate

* change function order

* add \n

* code clean

* code clean

* recover contact order

* recover order

* change ignore & `

* change as request

* change Gender

* add overloading method declaration & change mstType

* add m.mention()

* add function mention

* add jsDoc&comments

* add unit test for mention

* fix #216

* test

* test

* test

* add message unit test

* mock data

* mock data

* add msg.ready

* change m.ready place

* add all room.ready

* try to resolve request

* remove merge just mock data

* code clean

* reduce setTimeout seconds

* add example&comment & code clean

* code clean

* fix room member bug

* change log info & enforce type

* modify mention to mentioned

* identify @ by 8197

* code clean

* deal @ in name

* add comments for add_mention

* code clean on multiple at

* code clean

* #1 发送图片测试

* tslint

* 调整文件路径为stream

* remove bl,mime

* #4 implement
contact.say(new MediaMessage('/tmp/file.jpg'))
message.say(new MediaMessage('/tmp/haha.gif'))

* clean message.mediaId

* move MediaMessage to message.ts

* package: add bl 1.2.0

* merge Chatie-master

* Merge branch 'master' into pr/4

# Conflicts:
#	package.json

* restore puppet-web.ts format