Fix FormElement Form: new default 'typeAheadPedantic' is on. FE.name='name' needs to be disabled to type free columnnames

Fix PHPUnit tests

Link.php: SIP Links get automatically parameter '__dbIndexData'
Report.php: can select DB via 'dbIndex' directive (global)
AbstractBuildForm.php: dbIndexData now based on setting in Form (before on config.qfq.ini)
formEditor.sql: FormEditor update on Form 'form' and 'formElements'

Implemeted two new STORE_SYSTEM variables: '_dbNameData' and '_dbNameQfq' - those will be automatically filled qfq during instantiation QuickFormQuery(). They can be used in Report to easily access the needed DB.

Reformat manual for config.qfq.ini. Copy config.qfq.example.ini to MANUAL.rst. Migrate config defaults from setIfNotSet() to array_merge().

Bug #5285 - Make typeAheadPedantic the default

See merge request !41

Bug: Form: 'FormElement' > 'Container' - relied on '{{formId:S}}' even if the FE record already exist - fixed

Feature 5425 / thumbnail: rewrite - secure thumbnails are now rendered on first access, not when 'AS _thumbnail' is called.