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

Bug 7514. AS ..pdf|..file|..link broken defaults. Refs #7514. Fixes pdf, file. 'link' seems still be broken.

Add extension/Resources/Private/composer.json again. Makefile: add composer update again. Necessary to deliver phpoffice in extension/Resources/Private/vendor/phpoffice.

This reverts commit 571b5b6a

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'.

B3464: FE.type=subrecord, mode=readonly - fixed that sub form should be open with 'formGlobalMode=readonly'

phpunit: fix problems. Revert change in cb2e2a70: if a record lock exist, another form, with record lock mode=NONE, can't get write access to it. This is what the manual describes.

phpunit: fix problems. Revert change in cb2e2a70: if a record lock exist, another form, with record lock mode=NONE, can't get write access to it. This is what the manual describes.