Merge pull request #69 from AustinNodebots/master

ATX, Y'all
Merge pull request #70 from AustinNodebots/master

Fixed organizer typo.
houston add to readme
Merge pull request #72 from houstonjs/master

houston add to readme
Adding Vegas!
Typo
Add Portlandia without all the conflict
Merge pull request #73 from hackygolucky/patch-3

Add Portlandia without all the conflict
Add são paulo to locations
Merge pull request #74 from tadeuzagallo/sao-paulo

Add São Paulo to locations
Added AU bits and pieces
Merge pull request #75 from ajfisher/patch-2

Added AU bits and pieces
adding Guatemala
removing duplicate sponsor line
Merge pull request #77 from ykro/master

Guatemala added to the list!
adding Boston nodebotsday event
Added NodeBots of London event
Add Medellin!
Merge pull request #78 from achingbrain/patch-1

Added NodeBots of London event
Merge pull request #79 from julianduque/master

Add Medellin!