Conflicts:
	scheduler/OStoreDB/OStoreDB.cpp

This allows helgrind to be aware of succession of events.
Also reduced the default queue depth for unit tests.

Adapted the in-RPM script generation.

The delay will initially slow down the user and then the semaphore will block.
This prevent the queue from going too big and the agent object from growing
so big all becomes slow.

...before moving to first item of next job queue queue, which requires
one additional call to operator++

Summary now includes all tapepools, including those with no queued jobs
(previously we only showed a summary of queues containing jobs)

Conflicts:
	scheduler/OStoreDB/OStoreDB.hpp
	xroot_plugins/XrdSsiCtaRequestMessage.cpp

Better to have all formatting on the client side, so we format the
header and the reponse values in the same place. (Also no need to
send this data over the wire as it's always the same).

PB now accommodates "lpa" and "lpr" responses as well as "af ls"