Mistyping a key causes error

[StefanJanssen95]

I accidentally mistyped a key in the format string and did not get any progress in Discord during my print.

Expected Result: Just log the output string with the mistyped key. This makes debugging the cause easier and will still give you the correct feedback.

Actual Result: When using an incorrect key python throws an error

Info:

Traceback (most recent call last):
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/printer/standard.py", line 223, in call_plugins
    plugin.on_print_progress(storage, filename, progress)
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint_octorant/__init__.py", line 204, in on_print_progress
    self.notify_event("printing_progress",{"progress": progress})
  File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint_octorant/__init__.py", line 252, in notify_event
    return self.send_message(eventID, tmpConfig["message"].format(**data), tmpConfig["with_snapshot"])
KeyError: u'remaining-formatted'```

[bchanudet]

Hello and thanks for your feedback!

I will add an exception handling code to detect the mistyping of message variables and send the string as-is if the exception is triggered.

Hopefully I'll have time to do this quite soon.

[bchanudet]

As it seems "quite soon" is literally one year and 2 days... Sorry for taking so long!

The bug is fixed, and the resolution described in #38. It will be available in the next version. :)