Added happy birthday osm post from tumblr

Author: rhewitt22

_posts/2013-08-14-happy-birthday-osm.md

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+---
+layout: post
+title: Thanks to everyone who came out last week for OSM’s Birthday!
+category: blog
+
+description: "It never ceases to amaze me how many people get excited about OSM! We had about 40 people show up to celebrate, so many that we ran out of seats!
+Nevertheless, Alan (@mappingmashups) still managed to do an OSM 101 tutorial in Stamen’s conference room. Some people in there made their very first edits!"
+---
+
+It never ceases to amaze me how many people get excited about OSM! We had about 40 people show up to celebrate, so many that we ran out of seats!
+
+Nevertheless, Alan (@mappingmashups) still managed to do an OSM 101 tutorial in Stamen’s conference room. Some people in there made their very first edits!
+
+!["Happy Birthday OSM!"](/img/osms-birthday-meeting.jpg "Happy Birthday OSM!")
+<!--more-->
+Outside of the conference room, well, it kind of turned into a big party. That’s cool, we can take a night off from learning for beers and a mapcake…
+
+!["Let there be cake!"](/img/osms-birthday-cake.jpg "Let there be cake!")
+
+…or two…
+
+!["Let there be cake!"](/img/osms-birthday-cake-with-friends.jpg "Let there be cake!")
+
+Again, happy birthday OSM! And to sweet Stephanie (@mizmay), of Urban Mapping fame.