cylc testing: add restart tests
cylc testing: alter debug
initial test
cylc test-battery: changes following review
Trivial doc text hot-fix.
cylc.suite_logging: use max bytes in configuration

It was hard coded.
Merge pull request #717 from matthewrmshin/fix-suite-logging-max-bytes

cylc.suite_logging: use max bytes in configuration
Merge pull request #716 from benfitzpatrick/cylc-restart-testing

cylc test-battery: restart