~qeef/wschat

Update readme with mailing list info
Merge branch 'hotfix/0.2.1'
Update changelog
Update cargo
Update abstract

Since v0.2.0 it's possible to log the messages.
Merge branch 'release/0.2.0'
Update changelog
Update version in cargo config
Merge branch 'feature/log-file'
Update changelog
Fix warnings
Add logging when env var supported

You need to specify LOG_DIR environment variable in order to log
messages to the directory.

The messages are stored on day basis to the file of the format
YYYY-MM-DD.
Update gitignore
Add how to think about wschat section to readme

Resolves: #1
Reformat readme
Merge branch 'hotfix/0.1.2'
Update cargo version
Update changelog
Set listening port to 80
Next