Merge pull request #63 from hariadi/master

Update Gruntfile.js after move templates
docs(plugins): add docs source template

Following content and style from http://assemble.io/plugins/
Merge remote-tracking branch 'upstream/master' into plugins
Merge pull request #64 from hariadi/plugins

Plugins docs template
makes theme blue for plugins
darkens masthead a little
docs(task): remove load task form directory

There are no task to load.

Fix grunt warning log message.
docs(source): various fix

  * link "see template for this page"
  * update repo link to template (59019da)
  * add new link for helpers content area.