Merge pull request javascript-obfuscator#5 from mike-eason/patch-1

Fixes javascript-obfuscator#4

Author: Wain-PC

index.js

@@ -27,7 +27,7 @@ module.exports = function gulpJavaScriptObfuscator(options) {
 						contents: new Buffer(obfuscationResult.getSourceMap())
 					}))
 				}
-				cb();
+				cb(null, file);
 			}
 			catch (err) {
 				throw new PluginError('gulp-javascript-obfuscator', err);
@@ -36,4 +36,4 @@ module.exports = function gulpJavaScriptObfuscator(options) {
 			throw new PluginError('gulp-javascript-obfuscator', 'Streams are not supported!');
 		}
 	});
-};
+};