Updates to Google Analytics inclusion, jQuery Version(s) and new directories for jQuery Plugins and Theme Images

Relocated the Google Analytics request to prior to the </head> from the
footer

Removed the Google Urchin ID from the app.settings object in favor of
placing the Urchin ID in the default location (within Google's code)

ADDED: /plugins directory under the app/lib/jquery directory for easy
inclusion of jQuery plugins

ADDED: /img/theme directory under the app/_ directory for image
consistency

ADDED: /plugins/README for allowing you to define details pertaining to
plugin inclusion, use, etc.

ADDED: /img/theme/README for allowing you to define details pertaining
to images, etc.

Updated: jQuery 1.10.0 -> 1.10.1

Updated: jQuery 2.0.1 -> 2.0.2