Use isodatetime-2014.08.0-4-ged54df8
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.
Test: use `test` instead of bash `((...))` syntax
Merge pull request #1109 from hjoliver/some-gui-improvements

Some gui improvements
Merge pull request #1108 from matthewrmshin/job-script-submit-num

job script: export CYLC_TASK_SUBMIT_NUMBER
Merge pull request #1104 from matthewrmshin/isodatetime-2014.08.0-4-ged54df8

Use isodatetime-2014.08.0-4-ged54df8