* Prompts for user input after recognizing IWD1 CD.
* Doesn't install IWD-HOW.
* Installing BG1-3CD results in recursive copying of the save file directory into itself.  Weird.
* A number of official patches aren't installed?
* We should also install the unofficial fix/expansion patches (unifinished business, etc).
* We don't handle internationalized patches.
* Add switches to handle each option, so install be run non-interactively
* Run debian's checkbashisms script, to check if we're accidentally relying on more bash-specific features