Work with chained offsets.
Add tests.
Merge remote branch 'upstream/master' into chain_offsets
Review feedback.
Improved the graph_suite function for tests.
Sort compared files in one test.
Merge remote branch 'upstream/master' into chain_offsets
Feedback implemented.
Merge pull request #1097 from hjoliver/tests-graph-comp-fix

Improved the graph_suite function for tests.
cylc gui: add the submit id back into the task message field
remove debug
Merge pull request #1084 from arjclark/chain_offsets

#1048: Enable chaining durations
cylc gui: fix filter layout in tree view
Merge pull request #1098 from benfitzpatrick/cylc-gui.submit-id-message

cylc gui: restore submit id message
Merge pull request #1099 from benfitzpatrick/cylc-gui.fix-task-filtering-layout

cylc gui: fix filter layout in tree view