Remove profile sourcing from event hooks.
Merge remote branch 'upstream/master' into stop-event-hook-profile-sourcing
Merge remote branch 'upstream/master' into stop-event-hook-profile-sourcing
Added cylc-wrapper script and updated documentation.
Fix typo.
Clarify need to change /opt to cylc home root.
Tweak.
Merge pull request #801 from arjclark/stop-event-hook-profile-sourcing

Stop event hook profile sourcing