mjb/altos/doc/release-notes-1.8.3-docinfo.xml, branch 1.3.2.3

mjb/altos/doc/release-notes-1.8.3-docinfo.xml, branch 1.3.2.3 AltOS - the operating system for Altus Metrum products https://git.ethernal.org/mjb/altos/atom?h=1.3.2.3