poolmanager: Shut down request container thread pool during shutdown

Target: trunk
Request: 2.10
Require-notes: yes
Require-book: no
Acked-by: Paul Millar <paul.millar@desy.de>
Patch: https://rb.dcache.org/r/7376/
Minor adjustment to NoRouteToCell error in LoginBrokerHandler

Better matches the error we use in other places.

Target: trunk
Require-notes: no
Require-book: no
Acked-by: Paul Millar <paul.millar@desy.de>
Patch: https://rb.dcache.org/r/7377/
billing: Improve shutdown for db backend

The billing db would always print a warning on shutdown caused by
an expected thread interrupt. This patch elliminates that warning.
The patch also removes unnecessary checks for null values as well
as failures to react correctly to thread interrupt (when the thread
calling close is interrupted, it shouldn't continue blocking on
yet another Thread#join call). Finally, the patch changes serial
shutdown of consumer threads to shutting them down concurrently.

Target: trunk
Request: 2.10
Require-notes: yes
Require-book: no
Acked-by: Albert Rossi <arossi@fnal.gov>
Patch: https://rb.dcache.org/r/7378/
replica: Proper shutdown of database and avoid database singleton

Target: trunk
Require-notes: yes
Require-book: no
Acked-by: Albert Rossir <arossi@fnal.gov>
Patch: https://rb.dcache.org/r/7379/
replica: Shut down message processing thread on cell shutdown

Target: trunk
Require-notes: yes
Require-book: no
Acked-by: Paul Millar <paul.millar@desy.de>
Patch: https://rb.dcache.org/r/7380/
chimera: Avoid coupling to hikari and alarms in JdbcFs

Both the Hikari CP DataSource and the alarm DataSource wrapper
implement Closeable.

Target: trunk
Require-notes: no
Require-book: no
Acked-by: Albert Rossi <arossi@fnal.gov>
Patch: https://rb.dcache.org/r/7381/
pom: update to nfs4j-0.9.1

Changelog for nfs4j-0.9.0..nfs4j-0.9.1
    * [8ff8ff0] vfs-cache: add a possibility to cache FsStat results
    * [db7873f] vfs-cache: do not use memoizeWithExpiration if cachelifetime is
    * [25a1079] nfsv3: remove useless lookup and getattr on remove
    * [41dea07] calculate index in the FsExport constructor

Acked-by: Paul Millar
Target: master, 2.10
Require-book: no
Require-notes: no