Automatically generated installer lang files
MDL-19270 - Quiz graph - Fix reverse display of Hebrew legend text in RTL mode
Merge branch 'MDL-19270_master' of https://github.com/nadavkav/moodle

Conflicts:
	lib/graphlib.php
MDL-46148 questions: Added missing allow_commit for transaction
MDL-46193 phpunit: Replace value in component config.

There are two phpunit.xml build locations, one for overall
and another for individual components.  To reduce id changes
when running different components, we use the same initial ID
in all component files when building.
MDL-38990 mod_forum: Restrict ability to post to all groups in a forum

In order to post to all groups in a forum, you must have the
moodle/site:accessallgroups capability.

Thanks to Jakob Ackermann <jackermann@onlineschool.ca> for part of the fix
on this one.
MDL-46148 qtype_calculated: low-level defence against bad formulas

This catches things like:
 * Malicious equations coming from backup files.
 * Malicious equations in old questions in the database.
Merge branch 'install_master' of https://git.in.moodle.com/amosbot/moodle-install
weekly release 2.8dev