studio - revises notice headings to use icons

cms/templates/settings.html

@@ -100,7 +100,7 @@ from contentstore import utils
 
           % if not about_page_editable:
           <div class="notice notice-incontext notice-workflow">
-            <h3 class="title">${_("Note: About Your Course's Promotion")}</h3>
+            <h3 class="title"><i class="icon-warning-sign"></i>${_("Note: About Your Course's Promotion")}</h3>
             <div class="copy">
               <p>${_('Your course summary page will not be viewable until your course has been announced. To provide content for the page and preview it, follow the instructions provided by <abbr title="Program Manager">PM</abbr> or Conrad Warre <a rel="email" class="action action-email" href="mailto:conrad@edx.org">(conrad@edx.org)</a>.')}</p>
             </div>
@@ -180,7 +180,7 @@ from contentstore import utils
 
           % if not about_page_editable:
           <div class="notice notice-incontext notice-workflow">
-            <h3 class="title">${_("Note: These Dates Are Not Used When Promoting Your Course")}</h3>
+            <h3 class="title"><i class="icon-warning-sign"></i>${_("Note: These Dates Are Not Used When Promoting Your Course")}</h3>
             <div class="copy">
               <p>${_('These dates impact <strong>when your courseware can be viewed</strong>, but they are <strong>not the dates shown on your course summary page</strong>.  To provide the course start and registration dates as shown on your course summary page, follow the instructions provided by your <abbr title="Program Manager">PM</abbr> or Conrad Warre <a rel="email" class="action action-email" href="mailto:conrad@edx.org">(conrad@edx.org)</a>.')}</p>
             </div>