Follow-up fix after qa for bug#9916.
Removed Patch/Workaround for CPAN MIME::Parser v5.503 (introduced in OTRS 3.2.2) replaced with another solution, as it was causing problems with PGP.
Fixed: Fedora misses dependency on Sys::Syslog (bug#9940).

Also added dependency on Time::Piece - which is in core but not
on Fedora.
YAML::XS was not yet in the dependency list as well.
Merge remote-tracking branch 'upstream/rel-3_2' into rel-3_2