Indicate that zephyrs are clickable by changing the pointer on mouseover.

(imported from commit 0eb2bb3de3a0fe2664a7256bc06ea4c2fc3c4d31)

zephyr/static/styles/zephyr.css

@@ -44,6 +44,10 @@ ul.nav-zephyr {
     width: 640px;
 }
 
+.zephyr_row {
+    cursor: pointer;
+}
+
 /* This is a div on top of main_div that hides main_div's scroll bar. */
 #wrapper {
     overflow: hidden;