[BUGFIX] Fix PHP error because of missing method "injectPageService"

I got this PHP error:

    Call to undefined method
    Tx_Flux_Provider_Configuration_Fallback_PluginConfigurationProvider::injectPageService() 
    in t3core/typo3_src-4.5.git/typo3/sysext/extbase/Classes/Object/Container/Container.php on line 187

Version: 
* TYPO3 4.5 latest
* Flux and Fed master

The patch solves the problem although I am not sure if it is the optimal one.