Evaluate.php, QuickFormQuery.php: 1) split exception in user/support, 2) start to implement that '!' in '{{!...' is not necessary anymore. Implemented for 'fillStoreVar' in FE Action elements.

Fixes #7001 - Error message: if 'modeSql' fails, error message does not contain a reference to the causing FE.

Fixes #6866: On logout destroy STORE_USER. Session.php: check if _COOKIE['fe_typo_user'] has changed - yes: clear STORE_USER. Store.php: Rearrange functions.

Fixes #7407: MariaDB / Ubuntu 18 complains about missing values if column of type TEXT isn't explicit specified in INSERT. New default for database.init=SET sql_mode = "NO_ENGINE_SUBSTITUTION"

Manual.rst: Change _Paged to _paged in FormEditor example. Remove description to never implemented <level>.db. Add report keyword description <dbIndex>.

F4906 Php Session Timeout: can be specified globally in configuration and per form. Affects only logged in FE User.

Logger.php: remove UserAgent - that one is logged in FormSubmitLog Table. Add 'cookie' to filter individual actions.

.icon-flipped (mirrors icon)
.icon-spin (icon spins once on hover)
.icon-spin-reverse (mirror of icon spin)

F4901: implement 'delete split files' if primary file is deleted (record) or exchanged against a new one.

# Conflicts:
#	extension/Documentation/Manual.rst

F4901: implement split with 'convert' (jpeg). Refactor chmod(), unlink(), rename(), rmdir(), copy() to use by QFQ version which throws an exception.

thumbnail: empty path filename no ignored. Instead of throwing an exception, it returns just nothing. This is the same behaviour as building links - no definition means 'no link', and not 'error'.

QFQ now recommends ImageMagick instead of GraphicsMagic, due to much better 'convert' quality by converting 'svg' images.

QFQ now recommends ImageMagick instead of GraphicsMagic, due to much better 'convert' quality by converting 'svg' images.