Fold manual pre-config into installation script.

[davidpablocohn]

The following manual steps could/should be folded into the script:

Now fetch the installation-specific code and install and link it in the right place:

   sudo mkdir /opt/oceandatatools_local
   sudo chown rvdas /opt/oceandatatools_local
   sudo chgrp rvdas /opt/oceandatatools_local

   # Everything from here on should be done as user 'rvdas',
   # if you're not already doing so.
   su rvdas
   cd /opt/oceandatatools_local
   mkdir -p usap
   cd usap
   git clone https://github.com/OceanDataTools/usap_palmer_station.git palmer

   # Link into right place in openrvdas/local dir
   cd /opt/openrvdas/local
   ln -s /opt/oceandatatools_local/usap/palmer usap/palmer

The following script will create the needed symlink to the actual serial port and overlay the default OpenRVDAS supervisord files with the Palmer-specific

   cd /opt/openrvdas