v1.6.1

change version number. Refs #12752

v1.5.7

Switching to positive definition of grads in config file; advancing v…

v1.5.6

Added comment to config file; advancing version number to 1.5.6.

v1.5.5

Tweak to undergrad query per Lee Hemphill, plus corrected copyright d…

v1.5.4

Fixed bad query syntax and adjusted runtime script for new groups; ad…

v1.5.3

Added undergraduate, graduate, and law groups to configuration; advan…

v1.5.2

Removed AIS (1704) from HSL department list; advancing version number…

v1.5.1

Added retirees group to configuration; advancing version number to 1.…

v1.5.0

Updates and configuration changes; advancing version number to 1.5.0.

This fairly large commit includes the following changes:

- Corrections and updates to README, DEPLOY, and LICENSE docs.
- Update-to-current of Python interpreter version and source dependencies.
- Addition of "--batch_delay" CLI switch and associated code.
- Addition of "--sync_max" CLI switch and associated code.
- Change to syntax of "hsl-base" LDAP query syntax.
- Update of Docker base image to Alpine Linux 3.10.3.

This commit will be tagged as the v1.5.0 release.

v1.4.6

Added new employee type to patron group; updating version number to 1…