Update README.md - move, real engrish

See merge request !59

Update README.md - for moving

See merge request !58

Release 0.2.0.0

See merge request !57

this gets us better links in the result

cabal complains if it isn't there

Add coverage against more GHC versions to CI

See merge request !56

Re-instate lazy encryption / decryption

See merge request !55

Switch away from cipher-aes128

See merge request !54

Single-threaded initialize zfec before letting the tests use it

See merge request !53

This also lets us drop dependencies on:
* cereal
* crypto-api
* tagged

And incidentally I noticed we don't actually use monad-loops either.

Validate the crypttext hash tree and the segments

Closes #21

See merge request !52

Now it can't merely be `... = True` which is something, anyway.

`Digest' hash` (x) is already a ByteArrayAccess, we don't need to convert to a
ByteString to apply xor.