Added several usage examples, fixed bugs, turned off restore by default

libs/annotator/lib/plugin/markdown.js

@@ -0,0 +1,39 @@
+// Generated by CoffeeScript 1.6.3
+var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
+  __hasProp = {}.hasOwnProperty,
+  __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
+
+Annotator.Plugin.Markdown = (function(_super) {
+  __extends(Markdown, _super);
+
+  Markdown.prototype.events = {
+    'annotationViewerTextField': 'updateTextField'
+  };
+
+  function Markdown(element, options) {
+    this.updateTextField = __bind(this.updateTextField, this);
+    if ((typeof Showdown !== "undefined" && Showdown !== null ? Showdown.converter : void 0) != null) {
+      Markdown.__super__.constructor.apply(this, arguments);
+      this.converter = new Showdown.converter();
+    } else {
+      console.error(Annotator._t("To use the Markdown plugin, you must include Showdown into the page first."));
+    }
+  }
+
+  Markdown.prototype.updateTextField = function(field, annotation) {
+    var text;
+    text = Annotator.Util.escape(annotation.text || '');
+    return $(field).html(this.convert(text));
+  };
+
+  Markdown.prototype.convert = function(text) {
+    return this.converter.makeHtml(text);
+  };
+
+  return Markdown;
+
+})(Annotator.Plugin);
+
+/*
+//@ sourceMappingURL=markdown.map
+*/