roundFloor function calls removed

Sir, For Blake, I have removed these functions calls but for other implementations like AES and Salsa, you just check them once again that I have done it properly.
Thanks 
On Tue, Jul 01, 2014 at 07:27:49AM -0700, satvikc wrote:
> > @@ -15,7 +17,7 @@ import Raaz.Cipher.AES.Internal
> >  
> >  
> >  instance Primitive (AES CBC k) where
> > -  blockSize _ = roundFloor $ BITS (128 :: Int)
> > +  blockSize _ = fst (bitsQuotRem $ BITS (128 :: Word64))

Okey this is one bug. Why not just write instead `blocksSize _ = BYTES 16`

ppk