Vaisala IRIS Focus patch 5.1.3

Instructions:

- This patch also contains the fixes from patch 5.1.2
- This patch can be safely applied to versions 5.1.1 and 5.1.2,
  with the same effect.

- Copy Vaisala_IRIS_installer-5.1.3.tar to a temporary directory.
- Extract the tar:

tar -xvf Vaisala_IRIS_installer-5.1.3.tar

- Run the upgrade script (must be root, no arguments necessary):

./rsw-upgrade

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Fixed in patch 5.1.2:
- FIRE-6976: /var filling up; moved postgres data dir to /srv.

This patch will create a new directory for postgres data (/srv/vaisala/radarsw/pgsql/9.4/data),
and the original directory will be renamed to /var/lib/pgsql/9.4/data.bak during the upgrade
procedure. Once IRIS Focus is running fine after the upgrade, you may delete this entire directory
to free disk space on /var.

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Fixed in patch 5.1.3:
- FIRE-6993: Image export service returns default view

This patch will replace the webapp jar without reinstalling the rpm.