[!!] IMPORTANT: New tables added, please run "Database compare" in Install-Tool after update!
Backport of new functions and bugfixes for TYPO3 v9  11.

[FEATURE] Possibility to deactivate Warnings and Error messages
[FEATURE] New security features, Annotations and Helper Utilities
[FEATURE] Better error handling and a custom ApiError that can return customErrorCode and JSON
[FEATURE] Possibility to set max-age for routes
[BUGFIX] Remove unused table fields for fe_groups
[BUGFIX] issue 23 Backend Module crashes on loading
[BUGFIX] Error with multiline header on Exception call
[BUGFIX] Fix Issue 28 Custom distiller goes wrong with object
[BUGFIX] Fix Issue 25 - Custom route via @ApiRoute() allows any char at beginning
[BUGFIX] dont load TypoScript setup in PageResolver before really needed
[DOCS] Issue 27 - describe mandantory composer.json
[DOCS] added conflict information about EXT:autoloader