Update readme with mailing list info
Merge branch 'hotfix/0.2.1'
Since v0.2.0 it's possible to log the messages.
Merge branch 'release/0.2.0'
Update version in cargo config
Merge branch 'feature/log-file'
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
Add how to think about wschat section to readme
Merge branch 'hotfix/0.1.2'