unload(packages) {
		if (!Array.isArray(packages))
			packages = [ packages ];

		for (let i = 0; i < packages.length; i++) {
			delete this.state.values[packages[i]];
			delete this.state.creates[packages[i]];
			delete this.state.changes[packages[i]];
			delete this.state.deletes[packages[i]];

			delete this.loaded[packages[i]];
		}
	}
Unloads the given UCI configurations from the local cache.

@param {string|string[]} packages
The name of the configuration or an array of configuration
names to unload.