FIX 7853 Flush the content of drop down fields when closing html editor linker (links and images)
BUG Exclude framework/dev from text collection (fixes #4754)

Avoids breaking execution if PHPUnit is not installed,
since classes in framework/dev/ extend PHPUnit,
and get autoloaded when we inspect the ancestry and implementors
of every class defined on the filesystem.
Not an ideal, since it removes i18n support for dev classes,
but in practice this only impacts a single entity definition.
FIX 7934 When lazy loading fields respect version of the record
API Data corruption on Versioned due to lazy loading

Lazy loading no longer loads fields from the versions table when querying. This could lead to incorrect data being displayed if the data on the object and the version it pointed to did not match.

API methods to allow setting of the context of the query that generated the DataObject on that object (used by the lazy loading mechanism to correctly query the Stage, Live, or Versions tables)

See https://github.com/silverstripe/sapphire/pull/1178 for context.
BUG: update deprecated 'live' jquery to 'on'

'live' has been deprecated since jquery v 1.7.0, and has been removed
in the latest 2 versions of jquery
BUG: GridFieldFilterHeader only filters on last filter

GridFieldFilterHeader only filters on the last filter argument because it keeps recloning the original datalist
FIX Saving of custom meta tags (fixes #8288)

This should allow custom meta tags to be saved in the admin panel.

Also, if you use html5 video or audio the source sub tag
would have been stripped two these are all the tags that may be empty
and are valid.
Ensure composer files aren't accessible using IIS
Requirements acces to files with query strings (fixes #7735)

Originally authored by florian.thoma, tests added
by Ingo Schommer. Also removed query params from
file paths before calling mtime() on it.

See https://github.com/silverstripe/sapphire/pull/1023
Removed LOLCAT locale - sadly not supported by our translation infrastructure (fixes #1457)

It breaks the CMS when selected. If there's interest in maintaining it, we can re-add.
Removed LOLCAT locale from installer (fixes #1457)
Update translation.md
Merge pull request #1337 from adrexia/patch-1

BUG: update deprecated 'live' jquery to 'on'
Merge pull request #1347 from stojg/gridfieldfilterheader-last-filter-only

BUG: GridFieldFilterHeader only filters on last filter
Merge pull request #1185 from chillu/pulls/augment-lazy-versioned

Versioned lazy loading fixes (backport from 3.1)
Merge pull request #848 from chillu/pulls/4754

BUG Exclude framework/dev from text collection (fixes #4754)
Merge pull request #778 from patbolo/bugfix/7853

FIX 7853
Update form-validation.md

Minor typo, missing a '
Merge pull request #1738 from ss23/patch-1

Update form-validation.md
Avoid double encoding Date->Formati18n()

See https://github.com/silverstripe/sapphire/pull/1314
Thanks to @ivoba