Move exercises to subdirectory about erlang HOT 5 CLOSED

I want to take this one and spread the work over the next two weeks while updating the tests in accordance to #73.

So I have a question about how your system deals with a partial move.
Before merging the update, need all exercises to be moved into the subdirectory, or would everything work when there is only a single one moved and all others are still in a toplevel directory?

from erlang.

Partial/piecemeal move is perfectly acceptable. Right now it checks the new location first for a given exercise, then checks the old location as a fallback.

from erlang.

Thanks for doing the move work @NobbZ

from erlang.

So I'll move scrabble score and update this PR in the next 12 hours.

from erlang.

Done!

from erlang.