CA-112893: invoke xe-syslog-reconfigure to set up remote destination.

Signed-off-by: Simon Rowe <simon.rowe@eu.citrix.com>
Merge branch 'master' of git://hg.uk.xensource.com/carbon/trunk-ring0/xen-api into CA-112893
CA-113542: HUP rsyslogd if running

Signed-off-by: Simon Rowe <simon.rowe@eu.citrix.com>
CA-113542: HUP rsyslogd if running

Signed-off-by: Simon Rowe <simon.rowe@eu.citrix.com>
Merge branch 'master' of github.com:srowe/xen-api into CA-113542