Use isodatetime-2014.08.0-4-ged54df8
Got message outputs working for ISO cycling.
Removed obsolete ttype flag.
Some tidying.
Fixes for previous.
Fixed a test.

(Verbose validation prints site/user config errors to stderr).
Removed the old message-trigger test.
Added new message trigger tests.
Deleted old message trigger example.
Added a new message trigger example.
Redocumented message triggers.
Removed some debug code.
Removed obsolete cycling flags.
A little more tidying.
Merge pull request #1106 from hjoliver/fix-message-triggers

Fix message triggers for cylc-6
Doc: convert more durations to ISO 8601
job script: export CYLC_TASK_SUBMIT_NUMBER

New environment variable containing the submit number.
Added family indicator to task state icons.
Configure state icon size by View menu.
Merge pull request #1107 from matthewrmshin/fix-doc-durations

Doc: convert more durations to ISO 8601