ObjectOps by adding a second parameter to the template.

Thanks to Steve Murray for findind the solution.

This implied removing tpconfig, tplabel and tpstat.

Partial implementation of per object type dump.

Added rados library version validation and cleanup.
Created a new shared library to ensure instantiation of singleton object supporting the former.
Removed several double creations of drive objects in unit tests.
Added cleanup for potentially unused drive objects in unit tests.

Extracted BackendPopulator and OStoreDBWithAgent from the XrootD plugin to avoid linking the plugin too widely.

Added explicit dependencies for header files and replaced misplaced include to ensure parallel comilation.

Added tolerance to BackendRados::ScopedLock::release() when releasing a deleted object's lock.
Switched back to old style m_radosCtx.objects_begin() for compatibility with older releases of ceph.

Added a list method for the backends so we can clean up the rados store before running each unit test, which expects a fresh store.
Added a new command line tool to list the contents of the backends.

New URLs are rados://user@pool and file:///tmp/XXXXX. Otherwise, we fall back to interpreting
the URL as a bare path.

Added support for tape addition in scheduler db interace.
Expanded usage or CreationLog class.

Added support and unit test for object creating calls in RootEntry (DriveRegister, TapePool, AgentRegister)

Renamed the setName/GetName functions to the more appropriate getAddress/setAddress.

Created a richer protocol buffer RootEntry object and created a parital implementation to allow unit tests to run.

middletier, itself separated in interface, SQLite, objectstore and
shared tests.
Moved all utilities (exceptions, threading...) to a shared utility
directory.
Created a single, shared unit test from all the scattered ones.

Used exceptions while moving Vfs to creating its temporary directory using mkdtemp. This allows several Vfs intances to run on the same
system simultaneously.
Updated the model of the abstract unit test so it can instanciate one test environement per unit test. This was needed in the current
unit test for middle tier admin.

Created AdminUsersList in the object store as a first step to implement an object store middle tier.
Some namespace fixes for unit tests.

and created initial unit tests for those.

Intermediate commit: factored the base operations on ObjectOps and started to apply them to RootObject.