Adding docker for trying out docs generation

issue #2622

- yes 'docks' is a silly directory name but it's easier to remember which is which than docs and docs2

Gruntfile.js

@@ -364,6 +364,19 @@ var path           = require('path'),
                 }
             },
 
+
+            docker: {
+               docs: {
+                    dest: 'docks',
+                    src: ['.'],
+                    options: {
+                        exclude: 'node_modules,.git,.tmp,bower_components,content,*built,*test,*doc*,*vendor,config.js',
+                        extras: ['fileSearch']
+                    }
+
+                }
+            },
+
             // ### Config for grunt-contrib-clean
             // Clean up files as part of other tasks
             clean: {
@@ -929,7 +942,7 @@ var path           = require('path'),
 
         // ### Documentation
 
-        grunt.registerTask('docs', 'Generate Docs', ['groc']);
+        grunt.registerTask('docs', 'Generate Docs', ['docker', 'groc']);
 
 
         // ### Tools for building assets

package.json

@@ -71,6 +71,7 @@
         "grunt-contrib-jshint": "~0.8.0",
         "grunt-contrib-uglify": "~0.2.5",
         "grunt-contrib-watch": "~0.5.3",
+        "grunt-docker": "~0.8.8",
         "grunt-express-server": "~0.4.11",
         "grunt-groc": "~0.4.5",
         "grunt-mocha-cli": "~1.4.0",