Merge pull request #97 from AustinNodebots/master

Updated Austin with time, location, signup, and some sponsors
NodeBots Day SF registration
added PHX event
Updated some details around AUS events
houston signups and updateswq
Merge pull request #98 from monteslu/master

added PHX event
Merge pull request #101 from houstonjs/master

houston signups and updates
Merge pull request #99 from ajfisher/patch-3

Updated some details around AUS events
Added links to AU ticket registrations.
Merge pull request #102 from ajfisher/patch-4

Added links to AU ticket registrations.
Updates for Austin, TX