added gravatar photo to settings page. moved action items in vault listing to left side for better mobile access

src/Vault/less/vault.less

@@ -77,6 +77,16 @@ form div.validation-errors ul {
     }
 }
 
+@media screen and (min-width: @screen-sm-min) {
+    .settings-photo {
+        text-align: center;
+
+        img {
+            margin: 0 auto;
+        }
+    }
+}
+
 /* Buttons */
 
 .btn-table {