[director] Use new Resque logging and signaling properties [fixes #48285613]

- Change deprecated VERBOSE and VVERBOSE logging properties with new Resque Logger
- Use Resque new signal handling path (see http://hone.heroku.com/resque/2012/08/21/resque-signals.html)
Merge pull request #204 from cloudfoundry/resque_logging

[director] Use new Resque logging and signaling properties [fixes #48285613]