Automatically generated installer lang files
Revert "MDL-46531 Make atto foreground colors and background colors configurable"

This reverts commit cb6e1d527093bb955946498850ef8a51276a13a4.

This reverts commit 7a5e6054248ef18f05a228ab0db4d05e5d782180, reversing
changes made to 7b9fb265d20e53580a64dcd2be8546ff5b49bd26.

This reverts commit 06404b01180a2965804fab9e47715fdc2b6bdfb4, reversing
changes made to 0f87473fed2da15a8ba72ac9a578734fe2548f10.

Conflicts:
	theme/bootstrapbase/style/moodle.css
Merge branch 'install_master' of https://git.in.moodle.com/amosbot/moodle-install
weekly release 2.9dev
MDL-48221 mod_forum: Improve discussion subscription on post

If the user has posted in the forum before, follow their previous
discussion preference.

If the user has not posted before, but is subsscribed to the forum, follow
their forum preference.

Otherwise, follow their user-preference.

This has the result that if a user has unsubscribed from a forum and writes
their first response; the user preference will be followed. This may
override the forum subscription.

This commit also changes from a dropdown to a checkbox in both the post
form, and the user profile.