Manual.rst: remove subrecord/list (have been removed long time ago), fix enumeration problem FE.type=radio `classButton`.

Respect user setting for 'autocomplete' - if none given (mostly), set it for FE 'typeahead' to 'off'

FormEditor: 'typeahead' for column 'name' fixed. Attention: only succeed if DB_1_NAME is the final DB (mostly given).

AbstractBuildForm.php: remove $htmlImage of fabric element and specify background image in 'fabric' elemente via class 'data-backgroun-image'.

AbstractBuildForm.php: change 'annotate' and 'imageCut' to use SIP encoded download.

HelperFormElement.php: AppendFormElementNameImageCut()
Support.php: Force Sanatize Class fuer FE.type=imageCut.
AbstractBuildForm.php: Add source filename to SIP
QuickFormQuery.php: Call $save->processAllImageCutFE();
Save.php: processAllImageCutFE(), extractImageDataReplaceFile()

DatabaseUpdateData.php: extend FormElement.type to 'imageCut'.
Support.php: extend joinPath() to join path parts optionally without using file as absolute path. Implement unit tests.
Download.php: doc
AbstractBuildForm.php: implement FE,typ=imageCut
formEditor.sql: update FE with new element imageCut.

#5133 / sendmail: subject and body html entity decode: Introduce options for 'subject' and 'body' to switch on/off HTML encoding / decoding