Update night theme for FF compatibility

Author: bow

2014_bosc/presentation/css/theme/night.css

@@ -36,7 +36,7 @@ body {
 .reveal h6 {
   margin: 0 0 20px 0;
   color: #eeeeee;
-  font-family: "Montserrat", Impact, sans-serif;
+  font-family: Montserrat, Impact, sans-serif;
   line-height: 0.9em;
   letter-spacing: -0.03em;
   text-transform: none;