Make ontobot easier to debug

[cmungall]

I frequently forget to RTD and get the invocation syntax wrong. I don't see a PR and don't know how to debug.

We should make the regex more inclusive. If in the rare situation someone does an accidental "hey siri" type situation the worst that will happen is that OCA will not know how to interpret the full message.

I feel there are other situations where I make mistakes and OCA is silent, I don't recall precisely, sorry, but in general if it could be more chatty