Merge branch 'MDL-42598' of git://github.com/timhunt/moodle
MDL-42711 consolidated responsive styles into responsive.less
Merge branch 'MDL-42705-master-nomerge' of git://github.com/mouneyrac/moodle
MDL-42768 restore: Use sql_compare_text instead for text comparison
Merge branch 'MDL-42849-master' of git://github.com/andrewnicols/moodle
Merge branch 'wip-MDL-42833-master' of git://github.com/marinaglancy/moodle
MDL-42100 tool_capability: fixed incorrect links
MDL-42711 made all theme menu strings in chat popup translatable
MDL-41316 tool_spamcleaner: Fix sql queries

AS keyword is not allowed in sql qeries for table alias as Oracle doesn't support it
Thanks to Sara Cenni for suggesting the patch
MDL-40728 courseupload: add missing help icons
Merge branch 'MDL-40728-master-2' of git://github.com/mouneyrac/moodle
MDL-42711 added RTL styles to improvements.
MDL-42860 improve db session help string
MDL-42866 EditPDF: Fix bad foreign key in install.xml

Thanks Tim for reporting this!
Merge branch 'MDL-42866-master' of git://github.com/damyon/moodle
Merge branch 'MDL-42768-master' of git://github.com/FMCorz/moodle
MDL-42884 core_user: fixed issue when deleting users with invalid emails throws invalidusername exception
Automatically generated installer lang files
MDL-42853 frontpage: RTL alignment to match LTR
MDL-42853 course: Fix edit title icon margin on RTL