Fix config_path error.

[seekerliu]

Fix config_path to: DIR . '/../../../../config/repositories.php';

[seekerliu]

When enable RepositoryProvider to use console command, it appear an error:
[Symfony\Component\Debug\Exception\FatalErrorException] Illuminate\Support\ServiceProvider::mergeConfigFrom(): Failed opening requi red '/Users/seekerliu/Documents/sxmsV2/vendor/bosnadev/repositories/src/Bos nadev/Repositories/Providers/../../../config/repositories.php' (include_pat h='.:')

then I find that , the $config_path in RepositoryProvider lack a '../', so I insert it.

[eranshmil]

#79