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
When coffeelint is run with `no_stand_alone_at` it recognizes `@::` as such statement. Can be reverted if you liked it better before.