Added compilation tasks to Gruntfile.js

Added tasks to flatten the folder structure and rename the files and requires() accordingly.
Also added a task to insert a version.js with a global version variable as well as time-grunt to show the time it takes.

Gruntfile.js

@@ -1,4 +1,6 @@
 module.exports = function(grunt) {
+    require('time-grunt')(grunt);
+
     var config = require('./.credentials.json');
     var branch = grunt.option('branch') || config.branch;
     var email = grunt.option('email') || config.email;
@@ -7,6 +9,14 @@ module.exports = function(grunt) {
     
 
     grunt.loadNpmTasks('grunt-screeps');
+    grunt.loadNpmTasks('grunt-contrib-clean');
+    grunt.loadNpmTasks('grunt-contrib-copy');
+    grunt.loadNpmTasks('grunt-file-append');
+
+    var current_date = new Date();
+
+    grunt.log.subhead('Task start: ' + current_date.toLocaleString())
+    grunt.log.writeln('Branch: ' + branch)
 
     grunt.initConfig({
         screeps: {
@@ -19,6 +29,38 @@ module.exports = function(grunt) {
             dist: {
                 src: ['dist/*.js']
             }
-        }
-    });
+        },
+
+        clean: {
+            'dist': ['dist']
+        },
+        
+        copy: {  // Copy all source files into the dist folder, flattening the folder structure
+            screeps: {
+                files: [{
+                    expand: true,
+                    cwd: 'src/',
+                    src: '**',
+                    dest: 'dist/',
+                    filter: 'isFile',
+                    rename: function (dest, src) {
+                        return dest + src.replace(/\//g, '_');
+                    }
+                }],
+            }
+        },
+
+        file_append: {
+            versioning: {
+                files: [
+                    {
+                        append: "\nglobal.SCRIPT_VERSION = " + current_date.getTime() + "\n",
+                        input: 'dist/version.js'
+                    }
+                ]
+            }
+        },
+    })
+    
+    grunt.registerTask('default', ['clean', 'copy:screeps', 'file_append:versioning', 'screeps']);
 }