FOFController fixes

If saving a new item fails the redirect to the edit page with id=0 results in a redirection to the list view. Fixed to use the add task instead.

Bad formatting in redirection when an error occurs in applysave()
FOFController::getView caching not really compatible with HMVC

Due to the use of a static variable in getView you'd always end up with the same view object, no matter if you changed the config.
Removing extraneous line
Missing third parameter in FOFPlatform::setErrorHandling