rake run:debug error

There is an error thrown by the `dist/bin/start.sh` file when accessing the debug. Seems there is a dependency issue:
```bash
/home/vagrant/dist/runtimes/php/bin/php: error while loading shared libraries: libjpeg.so.8: cannot open shared object file: No such file or directory
```
The full output...
```bash
vagrant@precise64:~$ dist/bin/start.sh 4567 Debug_IDE
BUILDPACK_CONFIG_TYPE: 
-----> BASE_DIR: /home/vagrant/dist
-----> Writing config files...
Using wordpress-singlesite.conf.erb
-----> Logs are:
/home/vagrant/dist/logs/error.log
/home/vagrant/dist/logs/php-fpm.log
/home/vagrant/dist/logs/access.log
-----> Cleanup orphaned processes...
-----> Using LOGLEVEL: DEBUG_IDE [options: Error (default) | Warning | Info | Verbose | Debug_IDE (starts PHP Xdebug server) | Debug (starts Browser based debugger)]
/home/vagrant/dist/runtimes/php/bin/php: error while loading shared libraries: libjpeg.so.8: cannot open shared object file: No such file or directory
-----> Starting  on port 4567
/home/vagrant/dist/runtimes/php/bin/php: error while loading shared libraries: libjpeg.so.8: cannot open shared object file: No such file or directory
-----> Cleanup orphaned processes...
```