PHPConfigLoader added
PHPConfigLoader should merge default and environemnt config
Repository class added, to hold config values
Comments removed fomr PHPConfigLoaderTests
AbstractConfigLoader updated
YAMLConfigLoader added
YAMLConfigLoader working
AbstractConfigLoader.load added
AbstractLoader updated; LogicException thrown if no file is set when runinnig load method
ConfigurationLoader interface added, more fiendly thatn ConfigLoader
which is now deprecated
ConfigHolder added
Previous Config files deleted
Merge branch 'feature/unobtrusive-config' into develop