code: function(propName, propValue, options, ajaxOptions) {
            ajax({
              type: "PUT", 
              url: this.uri + propName + encodeOptions(options),
              data : JSON.stringify(propValue)
            },
              options,
              "The property could not be updated",
              ajaxOptions
            );
          }
docs: Set an arbitrary CouchDB database property
  @see <a href="http://techzone.couchbase.com/sites/default/files/
  uploads/all/documentation/couchbase-api.html">docs for /db/_prop</a>
  @param {String} propName Propery name to fetch
  @param {String} propValue Propery value to set
  @param {ajaxSettings} options <a href="http://api.jquery.com/
  jQuery.ajax/#jQuery-ajax-settings">jQuery ajax settings</a>
  @param {ajaxSettings} ajaxOptions <a href="http://api.jquery.com/
  jQuery.ajax/#jQuery-ajax-settings">jQuery ajax settings</a>