Yaml config and scriptability [WIP]

[phuhl]

[phuhl]

See #80

[phuhl]

Resovles #67 Resolves #80

[mikenrafter]

After briefly looking at config.hs, I see that there's a lot of repetition surrounding monad operators <*>...
If I have some time, I'll try to convert this to a nested-list with a map+fold function definition. It'll be far easier to manage.