Collapsible event list: The event list that was getting a bit unwieldily is now displayed as a tree where each event can be collapsed/expanded. For now, this is only seen under the Zones tab, but I will eventually also group Battle events so that you can assign tracks to groups of mobs (e.g. all elites).
Flying mount event: A new event under the Misc tab is fired when you start flying with a flying mount. Note that this event will not play if you are are on a flying mount on the ground. I will eventually make an event that maps to specific mounts, regardless of the flight status.
A lot of code cleanup to make it easier to maintain and add features
