added favicon, Closes #796

src/css/less/bootswatch.dark.less

@@ -56,7 +56,7 @@ hr {
 	}
 
 	.brand {
-		padding: 15px 20px 15px;
+		padding: 0px 15px;
 		color: @grayLighter;
 		font-weight: normal;
 		text-shadow: none;

src/css/less/grafana.less

@@ -35,6 +35,19 @@
   }
 }
 
+.logo-icon {
+  width: 26px;
+  padding: 12px 11px 0 0;
+  display: block;
+  float: left;
+}
+
+.page-title {
+ padding: 15px 0;
+ display: block;
+ float: left;
+}
+
 .row-button {
   width: 24px;
 }