test; fix; routes can now be configured with a debug flag and will only be registered if debug is set on the application level
config now supports constants or rather default values that can replace placeholders in configuration e.g. #CONSTANT#
Merge branch 'feature-config-constants' into development
invalid json config now throws an exception in oppose to failing silently
Merge branch 'refactor-json-decoder' into development

Conflicts:
	composer.json
	composer.lock
	src/Skip/ConfigLoader.php
	test/src/Skip/Test/ConfigLoaderTest.php