Fix graphing when several cycles depend no an async task.
Changed 'submitting' task state to 'ready'.
Back compat for state dumps.
Bug fix parsec upgrade function.
Parsec upgrader for gcylc.rc task states.
Merge pull request #790 from hjoliver/fix-async-task-graphing

Fix graphing when several cycles depend on an async task.
Updated change log for 5.4.4
Typo in suite.rc reference.
Merge pull request #794 from hjoliver/change-submitting-to-ready

Change submitting to ready
Merge branch 'master' into cylc-daemon-performance-rebase