Log Message:
Update thin pacakge to 1.3.1.

== 1.3.1 Triple Espresso
 * Fix service not working pre 1.9.

== 1.3.0 Double Espresso
 * BREAKING CHANGE: Thin no longer ships with fat Windows binaries.
   From now on, to install on Windows, install \ 
https://github.com/oneclick/rubyinstaller/wiki/Development-Kit.
 * BREAKING CHANGE: Remove automatic Content-Length setting.
   It is now the responsibility of the app (or a middleware) to set the \ 
Content-Length.
 * Log errors to STDERR [textgoeshere]
 * Shut down gracefully when receiving SIGTERM [ddollar]

     Processes are allowed a chance to shut down gracefully when receiving
     SIGTERM (http://en.wikipedia.org/wiki/SIGTERM).

     On Heroku, when shutting down a process, we send a SIGTERM followed 10
     seconds later with a SIGKILL, similar to the behavior of the init daemon
     on most Unix systems. This patch will allow Heroku apps to shut down
     gracefully when they need to be terminated / moved.