libs: Upgrade to JGlobus 2.0.6-rc3.d

Addresses a compatibility issue with some versions of curl and other
clients that send empty SSL messages.

Target: trunk
Request: 2.6
Require-notes: yes
Require-book: no
Acked-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Patch: http://rb.dcache.org/r/5659/
(cherry picked from commit 45c172f2602dde104b2cb31c0caaad923aac596e)
Merge pull request #97 from gbehrmann/fix/2.6/rb5659

libs: Upgrade to JGlobus 2.0.6-rc3.d