Set revision automatically and version number if correct tag is available.
richcombo plugin: Removes extra quote from generated template string.

This was resulting in invalid markup.
(This commit also removes the duplicate `hidefocus` attribute.)
Added path name to codesnippet.
Langs updated.
Changelog entry.
Merge branch 't/12113'
Tests: Checking whether cite element is removed when removing formatting from selection.
Add cite tag to default removeFormatTags in CKEDITOR.config.
Minor improvements in tests.
Changelog entry.
Merge branch 't/12311'
Filter is released from memory on CKEditor instance destroy.
Make a little more thorough clean up in case filter instance got referenced somewhere.
Changelog entry.
Merge branch 't/12261'
API Docs: new Enabling CKEditor in Unsupported Environments guide linked in env.isCompatible.
Fixes #10804: CKEDITOR_GETURL isn't used with some plugins it should be used
Changelog entry.
Merge branch 't/10804'
Fixes #9137: base-tag is not outputted when head-tag has an attribute.