Update RPM to version 8.1.6; adjust patches accordingly. Close #779.
New version of DAS. Close #786.
Small fixes to the crabclient prod instance. Close #790.
Restore t0.spec as it was left aside during the migration to git.
Update SiteDB to 2.6.0.
update t0wmadatasvc spec. Close #792.
Bump HG1407b.