A lot of changes

It seems that I've forgotten to make pull requests on this repo for a long time.

I don't use this script any more, so make sure you test all of these changes! :worried: 

I used the script up to version 0.92, but the latest changes (the whereis command stuff) was all done today. I tested it on my local machine (installing and uninstalling lm-sensors 15 times), but I wouldn't consider that to be "thorough." :grin: