configures sessions layouts through display suite layouts and fields

This pull request corrects a layout issue with the sessions where the Add to your sessions flag is printing on Pending, Unprocessed, and Declined session nodes. Display suite is preventing the three lines of code I wrote in node.tpl.php from implementing this user experience. I'm creating a feature to, at the least, not have all this required configuration exist only in the database. 

That being said, please check the following pages for the difference. 

Example for a Pending session:
http://www.nyccamp.org/session/drupal-business-professionals
vs
http://qr-code3-nyccamp2014.gotpantheon.com/session/drupal-business-professionals

Example for  an Unprocessed session:
http://www.nyccamp.org/session/power-dark-side-what-drupalers-can-learn-wordpress
vs
http://qr-code3-nyccamp2014.gotpantheon.com/session/power-dark-side-what-drupalers-can-learn-wordpress

Example for a Declined session example:
http://www.nyccamp.org/session/integrating-google-analytics-your-drupal-7-site
vs
http://qr-code3-nyccamp2014.gotpantheon.com/session/integrating-google-analytics-your-drupal-7-site
http://www.nyccamp.org/session/power-dark-side-what-drupalers-can-learn-wordpress
http://qr-code3-nyccamp2014.gotpantheon.com/session/power-dark-side-what-drupalers-can-learn-wordpress