Implemented initial HTTP timeline

css/laps.css

@@ -52,6 +52,9 @@
 #wpadminbar .laps-timeline .event-query {
   background-color: #5bc0de;
 }
+#wpadminbar .laps-timeline .event-http {
+  background-color: #d9534f;
+}
 #wpadminbar .tooltip {
   position: absolute;
   z-index: 100000;

css/laps.less

@@ -69,6 +69,10 @@
 		background-color: @event-info-color;
 	}
 
+	.laps-timeline .event-http {
+		background-color: @event-warning-color;
+	}
+
 	@import "tooltip.less";
 
 	.tooltip.in {