Bugfixes

Destruction:
- Non-Firehack rotations should no longer be stopping when AOE is
enabled and holding the hotkey while not having enough embers to AOE.
The single-target rotation now reflects this change recursively as well.

- Added a hotkey for Rain of Fire on mouseover location, bound to Left
Alt. I'll devise a new system when things settle down post-expansion
start where you can set your own keybinds to the different areas.