Replace Shadowbox with GLightbox, drop jQuery from public site

Vendors GLightbox 3.3.1 (MIT, dependency-free) as static files in
public/javascripts and public/stylesheets, replacing the Shadowbox
2009 vendor tree and its jQuery adapter. Public site no longer loads
jQuery at all.

- app/views/layouts/application.html.erb: swap Shadowbox script/style
  includes and the public_bundle (jQuery) include for GLightbox's
  CSS/JS
- app/views/content/_headline_image.html.erb: headline image is now
  itself a GLightbox trigger; additional images are direct
  a.glightbox links sharing a per-page data-gallery group, replacing
  the hidden shadowbox_images div and its click-forwarding trigger
- public/javascripts/public.js: replace Shadowbox.init/setup and the
  click-forwarding handler with a single GLightbox() init call;
  remove the unused image_handler object
- Remove public/javascripts/shadowbox/ (including vendored Sizzle,
  swfobject, and unused video/Flash players) and
  public/stylesheets/shadowbox.css
- Remove app/assets/javascripts/public_bundle.js (jquery require)

1 files changed, 0 insertions, 14 deletions

diff --git a/public/javascripts/shadowbox/README b/public/javascripts/shadowbox/README
deleted file mode 100644
index 06b5859..0000000
--- a/public/javascripts/shadowbox/README
+++ /dev/null
@@ -1,14 +0,0 @@
-Shadowbox is an online media viewing application that supports all of the web's
-most popular media publishing formats. Shadowbox is written entirely in
-JavaScript and CSS and is highly customizable. Using Shadowbox, website authors
-can display a wide assortment of media in all major browsers without navigating
-users away from the linking page.
-
-You should have received a license with this distribution explaining the terms
-under which Shadowbox may be used. If you did not, you may obtain a copy of the
-license at http://shadowbox-js.com/LICENSE
-
-Author:      Michael J. I. Jackson <michael@mjijackson.com>
-Copyright:   2007-2009 Michael J. I. Jackson, all rights reserved.
-
-You can view a demonstration of Shadowbox at http://shadowbox-js.com/