Added reaction to posts containing 'what?'

[N0tAI]

Might be some funny business on some node files related to how I set stuff up as I've not used node itself much.

Otherwise I only added a condition to Wheatley's Autoreact that checks if a message contains the string what? and if so will look for a reaction called thcampbell and if it exists applies it.

[N0tAI]

@jeremy-rifkin package-lock should be reverted now, sorry about that.

[jeremy-rifkin]

Thanks! I'll deploy this evening.

[Eisenwave]

Resolves #23.