Removed "async repeating" (satellite) tasks.
Merge branch '119.iso8601-cycling' into 119.remove-satellite-cycling

Conflicts:
	examples/satellite/suite.rc
	lib/cylc/cfgspec/suite.py
	lib/cylc/prerequisites/prerequisites_fuzzy.py
	lib/cylc/task_types/async_repeating.py
	lib/cylc/task_types/cycling_daemon.py
Removed remnant of async task code.
Removed some more async cruft.
Merge pull request #1002 from hjoliver/119.remove-satellite-cycling

Removed "async repeating" (satellite) tasks.