* NEWS: Add v0.22 hash. * doc/announce/ANNOUNCE-0.22: Add gen-announce checksums; update NEWS, typos.
* BOOTSTRAP: Release update. * HACKING: Likewise. * INSTALL: Likewise. * NEWS: Likewise. * PORTING: Likewise. * README: Likewise. * ROADMAP: Likewise. * doc/mes.texi: Likewise. * doc/announce/ANNOUNCE-0.22: New file.