- allow to disable the message filter.
- warn user if command has wrong syntax.
- warn user if language code is invalid.
- added filter to translate text sent in private (user can set the language to which text will be translated)
- improved commad description.
- try other engines if the default engine fails.
- moved check for correct engine from
deltabot_init, todeltabot_startto allow to change engine after a wrong engine was set.
- allow to translate quoted message (#1)
- quote translated message
- allow to set engine
- initial release