[TASK] Switch to renamed Flux Service
[TASK] Simplify ContentConfigurationProvider by using new Flux Service
[TASK] Remove dependency injection of removed Flux Service
[TASK] Pass extension name from ContentFieldSuppressor
[BUGFIX] Restore mistakenly removed cObject in Content Controller
[TASK] Adjust variable retrieval to new Flux Service in Content Controller
[TASK] Prepare Content Controller to become a Flux Controller
[TASK] Add dummy templates for the render and error methods
[TASK] Double-register ContentConfigurationProvider

Some pages in FE will not load ext_tables.php - this ensures the ConfigurationProvider exists.
[FEATURE] Content Controller with abstract class and interface

This implements the AbstractFluxController and allows other extensions to implement their own ContentControllers.
Merge pull request #35 from NamelessCoder/contentcontrollers

[FEATURE] Content Controllers