rra-c-util 5.1

The primary addition in this release is the Autoconf macros and header wrapper that I developed for lbcd to add systemd support. These are inspired by the code in systemd's daemon(7) man page but adjusted for my normal software conventions. This is just preliminary and doesn't yet stub out all of the functions, only the ones I've needed so far.

Also in this release, I fixed a bug with process_start_fakeroot, and hence with remctld_start_fakeroot, introduced in the last release when I rewrote the TAP process management add-on.

You can get the latest release from the rra-c-util distribution page.