Set registration to be open.
Merge pull request #44 from amyrbrown/iowa-open

Set registration to be open and add Eventbrite
Another airport
Merge branch 'master' of github.com:swcarpentry/site
Adding Ethan White to ESA bootcamp instructors
Merge pull request #45 from ethanwhite/updated-esa-instructors

Adding Ethan White to ESA bootcamp instructors
Using full http:// in URLs for dev and install
Merge pull request #47 from gvwilson/full-url-in-feed

Using full http:// in URLs for dev and install
added some notes on getting jekyll/redcarpet going on OS X
Adding talks and papers
Corrected instructors for 2013-07-18-notredame bootcamp page.
Added web site entry for Michigan State University 2013 bootcamp.
Fixed end date for 2013-09-09-caltech bootcamp entry.
Merge pull request #43 from ahmadia/readme-maruku

Need a clean(er) solution to Maruku/Redcarpet rendering problems.