documentation: fix quiz
Merge pull request #472 from benfitzpatrick/quiz.fix

rose documentation: amend quiz
rose.gtk.splash: improve stability.
rose suite-log-view: modify cylc task ID delimiter.
Merge pull request #474 from matthewrmshin/449.rose.gtk.splash

rose.gtk.splash: improve stability.
Merge pull request #475 from matthewrmshin/cylc.task-id-delim

rose suite-log-view: modify cylc task ID delimiter.