xrootd: Upgrade to xrootd4j 1.3.5

Fixes problems with kXR_set requests.

Ticket: http://rt.dcache.org/Ticket/Display.html?id=8468
Ticket: http://rt.dcache.org/Ticket/Display.html?id=8429
Target: trunk
Request: 2.10
Request: 2.9
Request: 2.8
Request: 2.7
Request: 2.6
Require-notes: yes
Require-book: no
Acked-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Patch: https://rb.dcache.org/r/7344/
(cherry picked from commit 6651bb2e2a72b09239ffcc3d71924159172e617a)

Conflicts:
	pom.xml
Merge pull request #867 from gbehrmann/fix/2.10/rb7344

xrootd: Upgrade to xrootd4j 1.3.5