coffeelint!

__324 warnings in 42 files__ (coffeelint) have been fixed.

Mostly just unnecessary double quotes, unnecessary fat arrows, miss-spaced `->` and empty functions (`-> return`). I have not been able to run the specs on my setup, so please feel free to do so on your own (in case I broke something).

Greets
Cleaner code. It can not be mistaken for a nested function, it is lint free and everyone who looks at the source code immediately knows that the function is "empty". Compiles to the same result as when it's omitted.