improve installer script

refs #7312

Do not change permissions on files that are not created by the
storage service.
increase default timeout values

refs #7311

The storage service uses nginx by default as a web server. The default
timeout values are 60 seconds in nginx.  This change increases
those timeout values to 1 hour.  This allows Archivematica to POST
large files (e.g. large AIP's) to the Storage Service.
Logging: Configure

refs #6812

Configure Django's logging and change references from logging root module
(logging.foo) to the fetched logger. Disable South having logging at
DEBUG.
Duracloud: Add logging
Logging: Add verbose log file, move to /var/log/archivematica

Add verbose log file that logs DEBUG logs as well.  Move logs to
/var/log/archivematiaca - assumes that is writeable.