Always remove force from options hash

This avoids force="true" on the script tags if force: true is set outside
of OFFLINE environments.

lib/jquery-rails-cdn.rb

@@ -18,7 +18,7 @@ def jquery_url(name)
     end
 
     def jquery_include_tag(name, options = {})
-      return javascript_include_tag(:jquery, options) if OFFLINE and !options.delete(:force)
+      return javascript_include_tag(:jquery, options) if !options.delete(:force) and OFFLINE
 
       [ javascript_include_tag(jquery_url(name), options),
         javascript_tag("window.jQuery || document.write(unescape('#{javascript_include_tag(:jquery, options).gsub('<','%3C')}'))")