add file copy task in grunt file

- add dev dependency grunt-contrib-copy

Gruntfile.js

@@ -9,12 +9,48 @@ module.exports = function (grunt) {
       },
       main: {
         files: [{
-        src: 'src/loggly.tracker.js',
-        dest: 'dist/loggly.tracker-' + packageJson.version + '.min.js'
-      }]
+            src: 'src/loggly.tracker.js',
+            dest: 'dist/loggly.tracker-' + packageJson.version + '.min.js'
+          }]
+      },
+    },
+    copy: {
+      main: {
+        files: [{
+          expand: true,
+          cwd: 'src',
+          src: 'loggly.tracker.js',
+          dest: 'dist/',
+        },{
+          expand: true,
+          src: 'src/loggly.tracker.js',
+          rename: function () {
+            return 'dist/loggly.tracker-latest.js';
+          }
+        },{
+          expand: true,
+          src: 'src/loggly.tracker.js',
+          rename: function () {
+            return 'dist/loggly.tracker-' + packageJson.version + '.js';
+          }
+        },{
+          expand: true,
+          src: 'dist/loggly.tracker-' + packageJson.version + '.min.map',
+          rename: function () {
+            return 'dist/loggly.tracker-latest.min.map';
+          }
+        },{
+          expand: true,
+          src: 'dist/loggly.tracker-' + packageJson.version + '.min.js',
+          rename: function () {
+            return 'dist/loggly.tracker-latest.min.js';
+          }
+        }
+        ]
       }
-    }
+    },
   });
   grunt.loadNpmTasks('grunt-contrib-uglify');
-  grunt.registerTask('default', ['uglify']);
+  grunt.loadNpmTasks('grunt-contrib-copy');
+  grunt.registerTask('default', ['uglify', 'copy']);
 };

package.json

@@ -18,6 +18,7 @@
   "devDependencies": {
     "bower": "^1.8.0",
     "grunt": "^1.0.1",
+    "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-uglify": "^3.0.1"
   }
 }