Usage: cta-admin --json <command> <subcommand> <options>

For stream commands only (where each line of the result is sent back in
a protocol buffer), return the results in JSON format instead of a
text table.

Adds better cleanup of Requests. The Send() method is synchronous as
before, for Metadata requests. The new SendAsync() method is for Data
and Stream requests, where the Response is returned asynchronously.

The framework now provides a DataFuture object for the asynch case.
After the Request has been sent, call DataFuture::wait() to clean up the
Request object once all data has been received.

Fixing repos priorities: as we are now pulling from the TAG repo we may have more recent EOS version in the CTA-CI repo (this was not the case for the commit repo). EOS tag repo has now a higher priority and yum cache is purged.

cta-fst-gcd now reports every 10,000 files that it has considered them.  This should help us see how fast the garbage collector is

Changed deafult release from 0 to 1 because 0 should never be used, see https://fedoraproject.org/wiki/Packaging:Versioning

Fixed.

Fixed

Enabling EOS TAG repo for nighly regression tests: if these fail we can now complain to the EOS team.

Upgraded to EOS 4.3.8-20180821144441gitbf49ffa in order to get the FST that does not fail an end-user close() when there is an error with the CTA frontend

Reverted commit of submodule xrootd-ssi-protobuf-interface to b92937743ef5f2eaf1e30336519c0e7ee055e6b2 in order to make the CI green again

- timeout limit increased to 600s
- drive status is no longer set to Unknown
- only effect of exceeding the timeout limit is to display the word
  STALE beside the update time

USerError will prevent the frontend from logging a stack trace.
File path will allow easier identification of problem files.

The tape write task not lister anymore to the memory manager for zero length files.