Modular addition in onetimeauth.
Fix typo

;)
Merge pull request #20 from kaepora/patch-1

Fix typo
Merge branch 'master' into fast
Tabs to spaces.
Don't throw in crypto_secretbox.
Merge branch 'master' into fast
Split crypto_stream_salsa20 and crypto_stream_salsa20_xor.

Write a test for crypto_stream.
Copy subnonce into a new array instead of using subarray.

Turns out it's faster this way (FF and V8).