Release Amalgamate version 0.1.70.
Release Amalgamate version 0.1.70.

 * Document inclusive/exclusive staging search keys. Closes #241.
 * Correct reverse inclusive/exclusive. Closes #240.
 * Upgrade `splice` to `3.0.0-alpha.69`.
 * Upgrade `riffle` to `2.0.0-alpha.87`.

Closes #242.

bigeasy/amalgamate,bigeasy/amalgamate