Add pry to help with debugging
Update schema

Not sure if I'm meant to commit this/how this happened/what the deal is
Enable person to leave a group
Remove require pry call from controller

I'm quite sure it was added by mistake, and is not necessary.
Change the way the leave message is constructed

Previously it would have too many spaces in it, like this:

"Please consider      buying everyone cake"

Which doesn't matter when output to html but I wanted to fix it anyway.
Merge pull request #153 from rubycorns/iwannaleave

I took the liberty to add two commits following up on my own remarks, I hope you don't mind.