Upgrade third party libraries

Note that logback has been upgraded too. There was a comment
noting that we did not upgrade earlier due to issues with remote
logging, but there was no link to a specific bug report and thus
it is difficult to know it the issue is fixed. Logback release
notes do however say that issues related to remote logging have
been fixed.

Target: trunk
Require-notes: no
Require-book: no
Acked-by: Paul Millar <paul.millar@desy.de>
Patch: http://rb.dcache.org/r/6716/