whitespace fixes
fns freesound, live_loop and after will be introduced in v2.1.0
We’re on the road to v2.1.0 (hoping to release early Nov)
Stop after doing special things with its optional param list:

* No longer assumes individual param items are maps
* Passes nil to a single arity block if there’s no params

Fixes #139
Merge pull request #2 from samaaron/master

catch up