The general string 'Publish' has been used in sense of publishing a
course on a hub - as such, it is better to keep that string together
with other related strings in the core_hub component. All these are
being reworded to 'Share'.

As this has been the only meaning of the string in the core, I am
deprecating it now. Third party plugins should better come with their
own variant of the string, should they need it.

Helen Foster authored Oct 19, 2017 and David Mudrák committed Oct 19, 2017

Significant string changes:

* multiple strings in core_hub - 'Publish' changed to 'Share' plus other
  wording improvements to avoid misunderstandings
* errorretrievingkey in message_airnotifier - improved wording and
  removing reference to Moodle.org
* enddate_help and courseduration_desc in core - clearer wording
  explaining what the date actually does
* restore:viewautomatedfilearea in core_role - changing wording to match
  the behaviour
* dropzones_help in qtype_ddmarker - improved wording
* autologinkeygenerationlockout in tool_mobile - updated error message
* configallowemailaddresses in core_admin - clearer description
* subscriptionmode_helpin mod_forum - removing misleading sentence about
  subscription mode changes not affecting existing users

Merge branch 'MDL-60247-multilang-html-glossary-block-titles' of https://github.com/lucaboesch/moodle

Build npm-shrinkwrap with the latest node version and only test the latest node version on travis.

Add a version bump for new admin setting

The message for changing the max grade in the module form
was inaccurate for modules that can not rescale.