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.

Implemented new php unit tests for encryption feature. Customized old unit tests to get them ready and work for the new feature (testConfigIniDefaultValues, TestFormEditor.sql). And corrected some typo.

QFQ encrypt/decrypt WIP: created new class for encryption and decryption of strings. Implemented multiple functions to handle these data. Prepared formEditor.sql and formElement.json for new feature

Refs #12636. Add stored procedure. Add OnString::escapeSingleTickInHtml() incl. unit test. Next step: use  escapeSingleTickInHtml().

Moved column Form.filstats before 'modified'. In all tables the columns 'modified' and 'created' are the last.

Refs #11118 - Special variable name {{randomUniq:V}} removed again. Uniqueness is now guaranteed in {{random:V}} itnernal. Therefore it's not necessary to provide an dedicated variable.

Fixes #9733: add JS code to name browser tabs individually. New GET variable 'tabUniqId' on record acquire is now saved in dirty record. On page reload, when the 'release' comes after 'acquire' (async behaviour), the locking is skipped (if same user session) - on reload there is no variable 'tabUniqId'. On real lock acquire, the tab ID is compared and will be denied if not matching. The 'tabUniqId' might not work in IE - doesn't matter: it's a seldom special situation.

Change definition of QFQ system tables for 'modified' and 'created'. Use DATETIME instead of TIMESTAMP

QIFEMPTY: detected empty for all - fixed. Not clear why the unit test not failed already. Unit tests checked again that they really work: they do!

New stored procedure: QDATE_FORMAT(timestamp). Return text in dd.mm.yyyy hh:mm format or '-' is timestamp is empty.