preinstall script only attempts to forget legacy package receipt if it is present on the system
postinstall script sets LaunchDaemon ownership and permissions (in case files were modified prior to distribution and ownership/permissions were not properly set) #36
added Troubleshooting section to README to address manual ownership/permissions repair on LaunchDaemon if package is not assembled with munkipkg
fixed release links in CHANGELOG to point to current domain
removed logger code from preinstall and postinstall (install.log can be used for installer diagnostic purposes in these cases)
changed postinstall to POSIX Shell (Bash not necessary due to script simplicity)
Verified script successfully defers and subsequently installs security updates (tested in macOS Mojave VM running 10.14.6 (18G3020) with Security Update 2020-002 and Safari 13.1 pending).
StartInterval
attribute read