Controls improvements

- Added an option to toggle which controls display
- Better handle missing controls

docs/src/less/docs.less

@@ -139,7 +139,7 @@ a {
 
 // Players
 .example-audio .player {
-    max-width: 480px;
+    max-width: 520px;
 }
 .example-video .player {
     max-width: 1200px;

docs/src/templates/controls.html

@@ -31,7 +31,11 @@
             <span class="sr-only">Forward {seektime} secs</span>
         </button>
         <span class="player-time">
-            <span class="sr-only">Time</span>
+            <span class="sr-only">Current time</span>
+            <span class="player-current-time">00:00</span>
+        </span>
+        <span class="player-time">
+            <span class="sr-only">Duration</span>
             <span class="player-duration">00:00</span>
         </span>
     </span>