allow use github module

avoid `outdated` error when use github address as module.

src/meta/dependencies.js

@@ -23,7 +23,7 @@ module.exports = function(Meta) {
 					var pkgData = JSON.parse(pkgData),
 						ok = semver.satisfies(pkgData.version, pkg.dependencies[module]);
 
-					if (ok) {
+					if (ok || pkgData._fromGithub) {
 						next(true);
 					} else {
 						process.stdout.write('[' + 'outdated'.yellow + '] ' + module.bold + ' v' + pkgData.version + ', requires ' + pkg.dependencies[module] + '\n')
@@ -38,4 +38,4 @@ module.exports = function(Meta) {
 			callback(!ok && global.env !== 'development' ? new Error('dependencies-out-of-date') : null);
 		});
 	};
-};
+};