Rewrite bitpack/bitunpack without dependency
Rewrite Packet to use cereal (which it already imported)
Remove binary-strict dependency
QuickCheck test for bitpack/bitunpack

Also, remove broken tests.  They can be fixed/restored from git if
needed.
bitunpack cannot fail
Merge branch 'remove-binary-strict' of https://github.com/singpolyma/Dust into singpolyma-remove-binary-strict

Conflicts:
	hs/Dust/Model/Huffman.hs