Added publishing functionality to Pubsubhubbub

Added the functionality of sending the alert to Pubsubhubbub.

Right now we have all the valid info only about pubsubhubbub . Will add a broker table later as and when more brokers are available.
It's better to avoid formatting changes outside the code you're working on. If this wasn't deliberate, put the line back so there isn't a diff, which could cause merge conflicts for others.