A couple minor bug fixes.

https://edx.lighthouseapp.com/projects/102637/tickets/173
https://edx.lighthouseapp.com/projects/102637/tickets/177

cms/templates/settings.html

@@ -206,7 +206,7 @@ from contentstore import utils
             <section class="setting-details-marketing">
               <header>
                 <h3>Introducing Your Course</h3>
-                <span class="detail">Information for perspective students</span>
+                <span class="detail">Information for prospective students</span>
               </header>
 
               <div class="row row-col2">

common/lib/xmodule/xmodule/js/src/html/edit.coffee

@@ -107,12 +107,13 @@ class @HTMLEditingDescriptor
     # In order for isDirty() to return true ONLY if edits have been made after setting the text,
     # both the startContent must be sync'ed up and the dirty flag set to false.
     visualEditor.startContent = visualEditor.getContent({format: "raw", no_events: 1});
-    visualEditor.isNotDirty = true
     @focusVisualEditor(visualEditor)
     @showingVisualEditor = true
 
   focusVisualEditor: (visualEditor) =>
     visualEditor.focus()
+    # Need to mark editor as not dirty both when it is initially created and when we switch back to it.
+    visualEditor.isNotDirty = true
     if not @$mceToolbar?
       @$mceToolbar = $(@element).find('table.mceToolbar')