Adding GUI login/logout capability using form-based login.

Adding REST API login capability using basic authentication.

HTTP to HTTPS redirect is suppressed for now.

Change-Id: I1a98bdc5576c515e1aa5a1b8d66402af0c0bf8c8
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 a9f3440..2e86e86 100644
--- a/web/gui/src/main/webapp/app/fw/mast/mast.css
+++ b/web/gui/src/main/webapp/app/fw/mast/mast.css
@@ -81,4 +81,22 @@
     padding-right: 16px;
     float: right;
     /*border: 1px solid red;*/
-}
\ No newline at end of file
+}
+
+#mast-right a {
+    font-size: 12pt;
+    font-style: normal;
+    font-weight: bold;
+    text-decoration: none;
+}
+
+.light #mast-right a {
+    color: #369;
+}
+.dark #mast-right a {
+    color: #eee;
+}
+
+#mast-right a:hover {
+    color: #CE5650;
+}