Refs #7743. Detection of 'pattern error' on per QFQ default, custom instance wide, per form or per FormElement - per FormElement overwrites other. System specific generated overwrites QFQ static default, instance wide default. Move default pattern to constants.

Refs #7743. Add unit tests. Make default error text more specific (only if default error text is not explicit set in config, form or form-element)

Fixes #7620. Label align left/center/right. Defined by config/form/formelement. FormEditor slightly redesigned.

Fixes #7594: FE.type=extra: don't name it 'type' or 'id' or 'L' - more detailed error message and an explanation in Manual.rst.

Bug 7539: Copy to clipboard not reliable. This commit fixes problems with 'copy file content' to clipboard. Refs #7539

Refactor: Manual.rst update config variables (reorder), add 'qfqLog'. Support.php: formSubmitLog hardcoded to fileadmin/protected/log. DOCUMENTATION_QFQ > SYSTEM_DOCUMENTATION_QFQ. Remove config var 'logDir'.

Fixes #3992 (Feature): dbNameQfq & dbNameData already implemented. dbNameT3 renamed from T3_DB_NAME. No more configuration in config.qfq.php necessary. Manual updated.
AbstractException.php: fixes access to uninitialized array elements.
Download.php: get dbT3 now from STORE_SYSTEM
Config.php: read 'dbNameT3' from TYPO3_CONF_VARS or from T3 config file.
QuickFormQuery.php: refactor gathering 'dbNames' - now from config.qfq.php. Fixes bug in getForwardMode() for QFQ inline editing.

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.

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

F6991 / Optional process 'readonly' FE during save. New FE parameter 'processReadOnly = 0|1'. refs #6991. Fixes #6991.

Upload: rename 'chmod' to 'chmodFile'. Implement 'chmodDir'. Permissions applied for all new created directories.