GUI -- Added apple touch icon and a few apple-related meta-tags into index.html.

Change-Id: I04448f99ffb0a31869e13d5997d8ddbe53483448
diff --git a/web/gui/src/main/webapp/app/fw/mast/mast.css b/web/gui/src/main/webapp/app/fw/mast/mast.css
index 0eec2ef..a9f3440 100644
--- a/web/gui/src/main/webapp/app/fw/mast/mast.css
+++ b/web/gui/src/main/webapp/app/fw/mast/mast.css
@@ -24,6 +24,10 @@
     vertical-align: baseline;
 }
 
+html[data-platform='iPad'] #mast {
+    padding-top: 16px;
+}
+
 .light #mast {
     background-color: #bbb;
     box-shadow: 0 2px 8px #777;