MDL-44669: mod/assign: fix batchoperations JS when using select all checkboxes.
MDL-29572 Grade Import: Avoid creating invalid temporary rows; Provide feedback on error
MDL-44575: Prevent cron from sending feedback notifications when assignments are hidden in the gradebook
MDL-33486 wiki: allow searching individual wikis
MDL-41895 conditions Show details of grouping restriction
MDL-42195 Bootstrap: Make bootstrap responsive images "opt-in".

This responsive image behaviour prevents setting of image sizes in text editors,
as well as a string of pix icon bugs / profile image bugs across Moodle.

We are switching to Bootstrap 3 syntax where you need img-responsive class to images
that want this behaviour.
MDL-43021 course: corrections to the shortname and idnumber uniqueness validation
Automatically generated installer lang files
MDL-44295 auth: Update truncate_userinfo to match current DB fields size.
MDL-44938 SCORM: missing constant definition during upgrade.
MDL-44738 SCORM: don't show heading when in popup mode.
MDL-44873 theme_bootstrapbase: Added support for notifytiny class
MDL-44873 behat: Added suppport for clean error class.
MDL-40872 Restore functionality of showrecentsubmissions setting
MDL-40843 recent_activity: corrections to grouping and user fields
MDL-40843 workshop: show user names in recent activity
MDL-40843 workshop: sort entries in recent activity block by time
MDL-44891 Behat: Add step to check attribute

This commit creates a Behat step of the form:

Then the "title" attribute of "Toggle visibility" "button"
should contain "Show"

This is useful because unless I missed something there is currently
no step that checks attribute values; this seems like a simple
generic step. Behat is intended to check user-visible effects in
the resulting HTML, and sometimes these effects are implemented
using attribute values (two common examples are the alt= attribute,
which is visible to screenreader users, and the title= attribute,
which is visible to all users; there's also the src attribute of
images, and lots of other possibilities too).
MDL-38183 themes: Removed redundant css rules for #adminsettings .form-overridden from standard and formal_white.
MDL-42317 theme_bootstrapbase: more responsive styling for forms with blocks pre && post