MDL-40674 - Main menu's "sub menu" should open to the left in RTL mode (theme/clean , bootstrapbase)
MDL-41891 Theme: Bullets and Numbering are missing from lists, When in RTL mode (theme/clean)
MDL-44844 core: Fix custom menu navigation

Atto introduced a rule to hide all Nodes with the yui3-menu-hidden class
but this rule is too general and applies to non-atto content too.

As a result, when loading the menu and during the XY calculation, the
native Element.getBoundingClientRect() function was returning a bounding
box size of 0 because the Node was not visible and the node was being
hidden from view when it was later made visible.
MDL-44354 page: fixed ignored property when fetching a renderer
MDL-45040 editor-atto: selection reverts erroneously

Fixed an issue where selections reverted on toolbar button press when the last selection was made by dragging outside of Atto.
MDL-44936 csslib: Chunking supports @media queries and commas in rules
MDL-44826 Atto: Remove most of the image alignment options

Just keep the simple ones and put some default padding on images.
MDL-45035 events: Fix @package and @since tags in Moodle 2.6 events
MDL-45003 qtype numeric : classify invalid response as no response.
MDL-45035 events: Fix @package and @since tags in Moodle 2.7 events
MDL-43719 tags: Fix the sql statement in the tag management page.

MSSQL and Oracle require that all fields in teh select also be present
in the group by section.
MDL-45048 repository_wikimedia: Abusing usage of optional_param

The optional_param call was moved outside of the constructor
because it was called every time the repository would be initialised.
That was leading to problems when the parameter was defined from
another form and not complying with its expected type.
MDL-44366 rework glossary filter caching
MDL-44366 bump up glossary and filter version
MDL-44366 improve glossary filter performance

This should have when there are no glossaries in course or
when there are no linked entries in existing glossaries.
MDL-44910 enable new logging during upgrade and installation

The legacy logging is now enabled for reading only
if legacy log data older than one day exists.
MDL-45070 relax the mariaDB version checker to work with long Ubuntu versions

Example of Ubuntu version: 5.5.5-10.0.10-MariaDB-1~saucy-log
MDL-45009 Tex filter: Add \( \) delimiters for 1:1 compatibility with MathJax
Merge branch 'MDL-45048-master' of git://github.com/FMCorz/moodle
Merge branch 'w16_MDL-44910_m27_logupgrade' of https://github.com/skodak/moodle