Add pull request body to pull request meta information

Author: Austin Pivarnik

lib/webhooks.js

@@ -125,7 +125,8 @@ function pullRequestJob(pr) {
           user: pr.head.repo.owner.login,
           repo: pr.head.repo.name,
           sha: pr.head.sha,
-          number: pr.number
+          number: pr.number,
+          body: pr.body
         }
       }
     }