Add Binary instance for Identity, from base-4.8.0.0

Don't use * as Type in the presence of TypeOperators

Fix CI

Same as version 0.9.0.0. There were no new breaking changes, so let's
go back to major 0.8.

Class: Drop Data.Typeable import for GHC <8.2

Remove redundant pattern-match warning when built with GHC 8.2

Again, trying to resolve haskell/cabal#4331.

See #123.

Split cabal install into two invocations. Cabal seems to not handle the 'cabal-version' constraint correctly, and ends up ordering the packages to install in the wrong order.
Installing Cabal separately first, and then all other packages, seems to work around the problem.

Don't use tyConString

`tyConString` has been deprecated since GHC 7.4. I'd like to move toward actually removing it. That can't happen until `binary` stops using it.

fix link in Data.Binary.Get documentation.

Should be a no-op if the constraint is already satisfied.

They're defined in recent QuickCheck versions.

For Hackage and Stackage versions

Import Data.ByteString.Short conditionally

Fixes #121.