Removes bit-docs from can-* projects

abolish-bit-docs.js

var fs = require('fs');
var path = require('path');

module.exports = {
	getOptions: function () {
		return [];
	},
	
	run: function (directory, opts) {
		var promises = [];
		var packageFile = path.join(directory, 'package.json');
		try{
			var package = require(packageFile);
			delete package.devDependencies['bit-docs-generate-readme'];
			delete package.scripts.document;
			delete package.dependencies['bit-docs'];
			delete package['bit-docs'];
			var out = JSON.stringify(package, null, 2);
			promises.push(new Promise(resolve => {
				fs.writeFile(packageFile, `${out}\n`, (err, result) => {
					if(err) return reject(err);
					resolve();
				});
			}));
		}catch(err){
			console.error('Failed to update package.json');
			console.error(err);
		}

		function rm(file){
			return new Promise(resolve => {
				fs.unlink(path.join(directory, file), (err, result) => {
					resolve();
				});
			});
		}

		promises.push(rm('documentjs.json'));
		promises.push(rm('document.js'));

		return Promise.all(promises);
	}
};