Behat: add script for timeline show correct version of plan block

[Steven]

TITLE: Behat: add script for timeline show correct version of plan block

BEHAT SCRIPT : Create Script feature file ->timeline.feature

RELATED TO: https://bugs.launchpad.net/mahara/+bug/1804243

SUMMARY: Script required for - New plan tasks appear in the timeline even when the tasks did not exist at the time of the snapshot.

REQUIREMENTS:

    1) check for updates to timeline when page saved to time line
    2) check that plan blocks are not automatically updated when new tasks are added

NOTE: There is a script for versioning but it should be called Timeline as that is what is used on the frontend to describe this functionality - suggest combining existing and new script to make one file called timeline.feature

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/10052

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/10052
Committed: https://git.mahara.org/mahara/mahara/commit/dcdc8a2847790346023adc8d265776ef2b835794
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit dcdc8a2847790346023adc8d265776ef2b835794
Author: Steven Spinelli <email address hidden>
Date: Wed May 29 13:15:16 2019 +1200

Behat Bug 1823823 add script for timeline show correct version of plan
block Added more comments to script to know what is being done

Change-Id: Ibd30ec02cb429f837dc180f04e1bff2939a97a9d