add custom logging middleware

This adds to Plack::Middleware to our web app:

- GenomeAccessLog is a copy of AccessLog with the PID added.  This will
  allow us to connect a response to a worker PID.
- GenomePreAccessLog is a fork of AccessLog to log requests before
  running the PSGI app.  This will allow us to know what a worker is
  doing before the request completes.
remove development environment option from local web-app

According to `plackup` docs the 'development' environment just enables
three middleware.  One of those is AccessLog and since we are adding our
own custom version of AccessLog we need to disable the original.  The
production server also enabled the 'development' environment and will
need the same change.