BotModeIgnoreApp fails to handle the official SlackBot

[rk295]

When using BotModeIgnoreApp the framework ignores messages from the official SlackBot, logging this error:

DEBU[0074] message from a bot with BotID: B01           
DEBU[0074] unable to get information on the bot that sent message: bot_not_found 

First line there was from some extra debug I added while triaging the issue.

The root cause is this, in short the API returns an error if you lookup the special case B01 which is reserved for the official bot. Neither the API of the Go Package we rely on handles this for us, so we must special case it in our code.

[arusso]

We've moved this repo to github.com/slack-io/slacker. If this is still an issue please re-submit the issue there. Apologies for the inconvenience.