merge develop to master

See merge request !444

Refs #9281 - Allow STRICT_TRANS_TABLES - Default '0' is now set for all INT columns. DB-Update will change column definition. TEXT columns still don't have a default: Before MariaDB 10.2.1, BLOB and TEXT columns could not be assigned a DEFAULT value. This restriction was lifted in MariaDB 10.2.1. - we still have several DBs with 10.0 and 10.1.

#b14590 empty type ahead request

See merge request !439

F9221typeAhead_Zeichenlimite_ausschalten

See merge request !442

B14611broken show table definition

See merge request !443

Fixes #9221: If FE_TYPEAHEAD_LDAP or FE_TYPEAHEAD_SQL is set, skip forcing maxlength to table column definition. Instead use custom supplied value.

Refactor $buildElementFunctionName: remove indirect function calls from AbtractBuildForm.php to simplify debugging.

QFQ encrypt/decrypt WIP: created new class for encryption and decryption of...

See merge request !438

Refs #4018: Implement renamed keywords _ta_query, _ta_prefetch. Fix broken detection of typeahead mode.