MDL-39280 form: Multiple select support disabledIf with multiple values
MDL-38347 - Calendar - Fixing arrow output on Android devices
MDL-33955 fix sloppy whitespace in curl class
MDL-33955 make downalod_file_content() use curl class and cleanup

The options in constructor were renamed to setttings in order to prevent confusion.
This removes ignored CURLOPT_BINARYTRANSFER, add newline header cleaning,
reworks proxy settings and some other minor issues.
MDL-33955 add file download and curl unit tests
MDL-28124 admin/tool/customlang: Changed page layout from 'standard' to 'report'.
MDL-40204 theme_bootstrapbase & theme_clean: Fix RTL 3 column lyt with 1 blk.
Automatically generated installer lang files
MDL-39779 wiki module: fix the alignment for required label to display inline on mobile devices
MDL-40165 Backup: Split out test classes into multiple files
MDL-39153 webservices: Provide alternative to passing contextids

As per our policy webservices should never have a required contextid, thuse providing a support for passing contextlevel and instanceid as parameters to the api
MDL-39153 libraries: role_unassign doesn't accept context as parameter. Fixing incorrect doc.
MDL-37761 Backup: Do not include files in backups when importing courses/activities

When we import courses or duplicate activities, the deduplicating nature of
the file_storage system means that we don't actually have to include the
real files in the backup - just their metadata from the file table.

The restoration process needs to know not to expect files from the backup
phase so a flag is set in moodle_backup metadata.
MDL-37761 Backup: Add phpdoc for MODE constants
MDL-39854 reimplement Frankenstyle support and enable classloader

Better performance, more reliable, completely self contained,
more validation and full backwards compatibility.

This will also allow us to implement ignoring of plugins.
MDL-39854 use class loader in editor_tinymce
MDL-39854 use classloader in add-on installer tool
MDL-39854: version bump for classloader new world
MDL-39854 fix installer regression caused by new core_component
MDL-39854 fix test_finder regression