Update release notes to actually reflect OpenJDK 18 and subsequent releases 18.0.1 & 18.0.1.1
Print release file during build, which should now include a correct SOURCE value from .src-rev
Update tarball script with IcedTea GitHub URL and .src-rev generation
Include script to generate bug list for release notes
Update tzdata requirement to 2022a to match JDK-8283350
Set LTS designator on RHEL, excluding Fedora & EPEL.
Rename libsvml.so to libjsvml.so following JDK-8276025
Remove JDK-8276572 patch which is now upstream.
Rebase RH1995150 & RH1996182 patches following JDK-8275863 addition to module-info.java
Add release notes for 15.0.1.0 & 15.0.2.0
Use JEP-322 Time-Based Versioning so we can handle a future 11.0.9.1-like release correctly.
Still use 15.0.x rather than 15.0.x.0 for file naming, as the trailing zero is omitted from tags.
Cleanup debug package descriptions and version number placement.
Remove unused patch files.
