don't disrupt scrolling around in the history.

js/babl/public/index.html

@@ -37,7 +37,9 @@
				var msgDate = new Date(msg.timestamp);
				msgEl.textContent = msgDate.toLocaleTimeString() + " - " + msg.author + ": " + msg.content;
				messagesEl.appendChild(msgEl);
				msgEl.scrollIntoView();
				if (window.scrollY >= window.scrollMaxY - 2 * inputEl.clientHeight) {
					msgEl.scrollIntoView();
				}
			}
			function handleMessage(msg) {