Fix issues found after removing annotator.js

Failing tests and what was fixed:
1. Sidebar was not closing when the user taps or clicks in the page.
	- Function that set up event handlers used to be called by the `Annotator` base class, now called directly in `Sidebar`
2. Config params used in the passed options to the sidebar iframe leaked a new property (`pluginClasses`) used by the refactoring
	- Filter that property in `Host`
3. `Guest` was missing `deleteAnnotation` function implementation that used to be in `Annotator`

Now only 2 tests should be failing

src/annotator/guest.coffee

@@ -356,6 +356,20 @@ module.exports = class Guest extends Delegator
 
     annotation
 
+  # Public: Deletes the annotation by removing the highlight from the DOM.
+  # Publishes the 'annotationDeleted' event on completion.
+  #
+  # annotation - An annotation Object to delete.
+  #
+  # Returns deleted annotation.
+  deleteAnnotation: (annotation) ->
+    if annotation.highlights?
+      for h in annotation.highlights when h.parentNode?
+        $(h).replaceWith(h.childNodes)
+
+    this.publish('annotationDeleted', [annotation])
+    annotation
+
   showAnnotations: (annotations) ->
     tags = (a.$tag for a in annotations)
     @crossframe?.call('showAnnotations', tags)

src/annotator/host.coffee

@@ -4,9 +4,9 @@ Guest = require('./guest')
 
 module.exports = class Host extends Guest
   constructor: (element, options) ->
-    # Make a copy of all options except `options.app`, the app base URL.
+    # Make a copy of all options except `options.app`, the app base URL, and `options.pluginClasses`
     configParam = 'config=' + encodeURIComponent(
-      JSON.stringify(Object.assign({}, options, {app:undefined}))
+      JSON.stringify(Object.assign({}, options, {app:undefined, pluginClasses: undefined }))
     )
     if options.app and '?' in options.app
       options.app += '&' + configParam

src/annotator/sidebar.coffee

@@ -40,6 +40,7 @@ module.exports = class Sidebar extends Host
     @onLoginRequest = options.services?[0]?.onLoginRequest
 
     this._setupSidebarEvents()
+    this._setupDocumentEvents()
 
   _setupDocumentEvents: ->
     sidebarTrigger(document.body, => this.show())