Features:
- I have changed the mouse-over tooltip on class ancient items. It now displays strings of every active node you have taken.
- I reduced the rate that corruption spreads during invasions

Bugs:
- Fixed a problem with respec. It wasn't clearing the points spent in your ancient trees correctly, but it does now. You will need to buy a new document.
- When you clicked on a node to buy it in the ancient-tree, there was a strange flicker with the popup, but it has been fixed.