MDL-37966 Assignment: put upgraded modules where the originals were
MDL-38889 Community finder search display setType() form warnings
MDL-30940 form: Mutiple select work correctly without any selection
MDL-38807 grades: missing setType() calls

In grade category, item and grade forms. Most of these
values are floats handled by format_/unformat_float functions, the
text fields are handled using format_text().
MDL-38807 missing setType warnings on grade screens
MDL-29258 core_portfolio: Fixing broken default breadcrumb
MDL-39298 - gradebook: Added more delimiters for uploading and downloading the gradebook as a csv file.

New delimiters added: colon, semicolon
MDL-39305 fixed display bugs in course listings

- When category has a lot of subcategories and courses and user clicks 'view more' for categories, the courses are still displayed
- Course summary non-image files may appear above course summary image files, and they don't have an icon with the filetype
MDL-39329 course: Strict standard warning during unpublishing
MDL-39192 mod_forum: do not need to check the posting threshold when editing a post
MDL-34403 mod quiz: fix error during enrolment
Automatically generated installer lang files
MDL-39250 theme_clean: Removed 2 instances of id="region-pre" from aside tags in layout/general.php.
Merge branch 'MDL-39329-master' of git://github.com/FMCorz/moodle
Merge branch 'MDL-29258_master' of git://github.com/dmonllao/moodle
MDL-37988 Completion reports: Table header row not in thead section
Merge branch 'MDL-34403' of https://github.com/mpetrowi/moodle
Merge branch 'MDL-38889-master' of git://github.com/mouneyrac/moodle
Merge branch 'wip-MDL-39305-master' of git://github.com/marinaglancy/moodle
MDL-39355 JavaScript: Correct zIndex for tooltip