MDL-23514 lang : Adding an option to force language of documentation links
MDL-42618 fix grade importing of whitespace idnumbers
MDL-41646 Wiki: Removed unnecessary wiki_info class
MDL-40921 mod_workshop: New events to replace add_to_log function calls.
MDL-40921 mod_workshop: Unit tests for new events system.
MDL-40921 mod_workshop: Alter event levels as requested by David.
MDL-40061 mod_data: replaced 'view' add_to_log call with an event
MDL-40061 mod_data: replaced 'view all' add_to_log call with an event
MDL-40921 mod_workshop: fix unit tests
MDL-39337 html_writer: Added img() function

img function has been added to the html_writer.
use it by calling the function as shown:
html_writer::img('foo.com','Foo',array('title'=>'Foo2'));
This will result in the following string:
<img src="foo.com" alt="Foo" title="Foo2"/>
MDL-43337 WebService: Missing break statement added

In function get_enrolled_users_with_capability
MDL-43337 enrol: More tests for get_enrolled_users_with_capability
MDL-43337 enrol: Missing break in get_enrolled_users WS
MDL-42541 stop using events for porfolion cron
MDL-43265 Fix question name text to 255 chars
MDL-44161 Javascript: Include upstream patch for modal widget position jump

This is courtesty of the upstream pull request https://github.com/yui/yui3/pull/1636
MDL-41755 tablelib : added a function to add multiple rows at once
MDL-41758 quiz statistics : link to full break down of stats for slots

where a question in a slot has subquestions and/or variants.
MDL-41759 quiz statistics : break down responses for each variant
MDL-43539 quiz statistics : coding error from progress bar

when no sub-questions - "parent progress count must be at least 1"