[+FEATURE] Extbase (Configuration): Configuration is available in Backend modules now! Depending on TYPO3_MODE the dispatcher now creates an instance of Frontend- or BackendConfigurationManager. TypoScriptSource has been adjusted to support Backend mode. This resolves #4418
[~TASK] Extbase (Configuration): Moved Configuration Source Interface from Classes/Configuration to Classes/Configuration/Source
[+TASK] Extbase (MVC): AbstractController::redirectToURI() prepends 'typo3/' to the absolute URI when in Backend mode
[+FEATURE] Extbase (MVC): added a call to t3lib_div::getFileAbsFileName() for templateRootPath to allow notations like "EXT:extension/path" and to validate the template path
[+FEATURE] Extbase (MVC): settings are now assigned to the view in AbstractController::resolveView. Now settings are available in your template as {settings}!
[+FEATURE] Extbase (MVC): UriBuilder can now create absolute URIs in Backend mode too
[+BUGFIX] Extbase (Persistence): added t3lib_BEfunc::deleteClause() call to enableFieldsStatement in Backend mode. Otherwise deleted records would be selected in BE