[TASK] Fixed broken plugin config merging
[FEATURE] Better replacing of variables in config files.
[BUGFIX] Fixed loading of custom helpers for own namespaces.
[FEATURE] Moved complete database logic into new DatabaseHelper.
Merge branch 'develop' of github.com:netz98/n98-magerun into develop

Conflicts:
	src/N98/Magento/Command/ConfigurationLoader.php