Updated obsolete documention on network timeouts.
Changes to task.py to reduce clutter and add missing content.
Tidy up recording submitted event.
Typo correction.
Merge branch 'master' of github.com:cylc/cylc
(trivial) restored a short command option
Updated the update-gh-pages admin script.
Merge pull request #328 from arjclark/db-tidy

Db tidy