grunt: minor watch fix

tasks/options/watch.js

@@ -54,19 +54,12 @@ module.exports = function(config, grunt) {
           grunt.task.run('css');
         }
 
-        // if (/(\.ts)$/.test(filepath)) {
-        //   newPath = filepath.replace(/^public/, 'public_gen');
-        //   grunt.log.writeln('Copying to ' + newPath);
-        //   grunt.file.copy(filepath, newPath);
-        //
-        //   // copy ts file also used by source maps
-        //   //changes changed file source to that of the changed file
-        //   grunt.config('typescript.build.src', filepath);
-        //   grunt.config('tslint.source.files.src', filepath);
-        //
-        //   grunt.task.run('exec:tscompile');
-        //   grunt.task.run('exec:tslint');
-        // }
+        if (/(\.ts)$/.test(filepath)) {
+          newPath = filepath.replace(/^public/, 'public_gen');
+          grunt.log.writeln('Copying to ' + newPath);
+          grunt.file.copy(filepath, newPath);
+          grunt.task.run('exec:tslint');
+        }
 
         done();
         firstRun = false;