Store.php: fills arrays direct in $_SESSION - not sure if this works.
AbstractBuildForm.php: buildFile() extended to create hidden sipUplaod element.
BuildFormBootstrap.php: support different actions on calling file.php
File.php, Save.php: rewrote whole logic of uploading files. See CODING.md

QfqForm.js: Buttons should behave as described in CODING.md under UI.

Support.php: rewrote appendTypo3ParameterToArray() to use Typo3 Store instead of _GET Parameter. Moved randomAlphaNum() to Support.
Link.php: rewrote handling of ToolTip. Renamed doHtmlUrl() to doAnchor().
Utils.php: moved randomAlphaNum() to Support.
Store.php: rewrote fillStoreClient() to be more compatible with phpUnit-test environment. Removed randomAlphaNum() - duplicate in Support.
AnbstractBuildForm.php: rewrote deriveNewRecordUrlFromExistingSip() to use generic Support::appendTypo3ParameterToArray()
Coding.md: Notes for debuggging.

UsersManual/Index.rst: added Form.showButton
Support: added findInSet()
AbstractBuildForm: added createDeleteUrl(), prepareSubrecord(), getFormTable(). Rewrote buildSubrecord(): added 'delete' link, rearranged 'new' link. 'ShowDebugInfo' enhanced.
BuildFormBootstrap: rewrote BuildButton() to switch New/Delete Button on or off. Show debugInfo as tooltip.
Constants: New Subrecord contants.
formEditor.sql: added Form.showButton. Adjusted records

AbstractBuildForm: implementd uniqe formId.
BuildFromBootstrap: Save-Button will receive 'formId'
Constants: new field TYPO3_TT_CONTENET_ID
BuildFromPlainTest: implemented test for getFormId.
EvaluateTest: fixed wrong assert test