This functionality no longer makes sense inside Moodle now that we have
external tools like stylelint to help us with this. It was not able to
be used by any core themes.

The code was always marked as not for external use.

First stage deprecation for the functions update_module_button and
core_renderer::update_module_button().

Initial deprecation of the above functions.

This also removes abandoned strings that are no longer in use (since
1e23ff21 landed).

Change 'official' to 'standard' in UI

Debugging messages triggered once it is confirmed that the events 1 api handlers
are being used.

On rewriting MDL-47491, we ended in a situation where these
modifications had been incorporated via merge commits. And kept
undetected by rebase -ip.

In general, please, use merge commits only for solving conflicts,
never as a replacement for fixup commits. To fix non-conflicting
things, add new, proper, fixup commits.

In MDL-50891, the is_web_crawler() was refactored into a core_useragent
method and the function itself was deprecated. However, there were no
unit tests kept to check the backwards compatible behaviour. It turned
out that the deprecated function leads to PHP fatal error due to a typo.

This patch fixes the typo and brings back the previous unit tests. To be
able to explicitly check the raised debugging message, the test case
now must be subclass of advanced_testcase.

Additionally fixes missing info about the function being deprecated.

Added new functions to editor api - set/get_text so the
original form text can be determined from an editor.

When calling use_editor() you should first call set_text() with
the text that will be inserted in the form element.

There is also a new scheduled task for cleaning Atto autosave drafts.

Also fix copyright

- complete and cleanup upgrade.txt
- replace remaining uses in comments.
- fix some incorrect bulk-replacement in previous commit.

Ankit Agarwal authored Apr 07, 2015 and Adrian Greeve committed Apr 10, 2015

Part of MDL-45774.

Contributions by John Okely, Jetha Chan and Damyon Wiese (squashed branch).

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