'grunt devel' aliases 'grunt amdconfig'

to be able to routinely run 'grunt devel'
to refresh codfiguration in project as well as in Amber

Gruntfile.js

@@ -23,6 +23,7 @@ module.exports = function(grunt) {
   // Default task.
   grunt.registerTask('default', ['amberc:all']);
   grunt.registerTask('test', ['amberc:test_runner', 'execute:test_runner', 'clean:test_runner']);
+  grunt.registerTask('devel', ['amdconfig:amber']);
 
   // Project configuration.
   grunt.initConfig({