This reverts commit 87a59675011a4cf284d8e44c4fb66042ad84c39f.
At least 'modules/doc/run.php' issues a warning about "The use statement with non-compound name 'Zend_Controller_Router_Route' has no effect"
Add an ini writer that respects the file structure and the comments that may be
already present in the config file. Move Application/Config.php into
Config/Config.php.
refs #4352
This change leads to expected exceptions when bootstrapping the
application since the \Icinga\Application\Config class was
refactored but its usage not.
refs #4354
refs #4353