High: ensure that sbd is activated after systemd module loading (bnc#869612)

Otherwise, watchdog modules might not yet be loaded if they are
activated using this mechanism.
High: order sbd start-up after iSCSI target connection (bnc#869612)
High: allow sbd to wait for devices to appear on start-up (bnc#869612)
Medium: Refactor timeout consistency check and start-up discovery
Low: adjust loglevel for start-up device polling

Instead of throwing errors while the devices are not yet reachable,
reduce to an info message for debugging.
Medium: allow watchdog to be disabled (bnc#865365)

The somewhat annoying syntax of needing to specify -W twice, instead of
passing in a value, is due to the need for backwards compatibility.
High: pacemaker: invoke crm_xml_init (bnc#881231)

While this was only a performance optimization in pcmk < 1.1.12, newer
versions actually set up important house keeping.
man: correct the example CIB configuration syntax

Spotted by Darren Thompson <darrent@akurit.com.au>.