bot meetings AND bot new meeting <day&time>

[RyFisher]

A scheduler for the ennovar conference room.

When user types "bot new meeting <day&time>", add that date and time to a list to reserve the ennovar conference room at that time.

When user types "bot meetings" display a list of times when people have reserved the ennovar conference room.

These commands MUST use hubot-redis-brain to store data, otherwise all scheduled times will be lost when the bot restarts. Check the hubot documentation for "Persistence" and using robot.brain

[RyFisher]

@davidwibowo and @Aishvarya25 will be working on this