renamed panel blocks

scm-ui/src/repos/containers/ChangesetsRoot.js

@@ -89,12 +89,12 @@ class BranchRoot extends React.Component<Props> {
     const changesets = <Changesets repository={repository} branch={branch} />;
 
     return (
-      <nav className="panel">
-        <article className="panel-heading">
+      <div className="panel">
+        <div className="panel-heading">
         {this.renderBranchSelector()}
-        </article>
+        </div>
         <Route path={`${url}/:page?`} component={() => changesets} />
-      </nav>
+      </div>
     );
   }
 

scm-ui/src/repos/sources/containers/Content.js

@@ -176,11 +176,11 @@ class Content extends React.Component<Props, State> {
 
     return (
       <div>
-        <nav className="panel">
-          <article className="panel-heading">{header}</article>
+        <div className="panel">
+          <div className="panel-heading">{header}</div>
           {moreInformation}
           {content}
-        </nav>
+        </div>
       </div>
     );
   }

scm-ui/src/repos/sources/containers/Sources.js

@@ -93,17 +93,17 @@ class Sources extends React.Component<Props> {
 
     if (currentFileIsDirectory) {
       return (
-        <nav className="panel">
-          <article className="panel-heading">
+        <div className="panel">
+          <div className="panel-heading">
             {this.renderBranchSelector()}
-          </article>
+          </div>
           <FileTree
             repository={repository}
             revision={revision}
             path={path}
             baseUrl={baseUrl}
           />
-        </nav>
+        </div>
       );
     } else {
       return (

scm-ui/styles/scm.scss

@@ -186,7 +186,7 @@ $fa-font-path: "webfonts";
 }
 
 //panels
-nav.panel {
+.panel {
   .panel-block {
     display: block;
   }