amberc-grunt: print on console where files get moved to

grunt/tasks/amberc-grunt.js

@@ -137,6 +137,7 @@ module.exports = function(grunt) {
 
     compiledFiles.forEach(function(file) {
       if (path.existsSync(file)) {
+        console.log('Move: ' + file + ' -> ' + path.join(target_dir, file));
         fs.renameSync(file, path.join(target_dir, file));
       }
     });