- Update to v1.1.0
* Prevent invalid flag combinations when creating a database.
* Add a Cursor.getmulti method with optional buffer support.

- Update to v1.0.0
* Start of new semantic versioning scheme. This would be a minor
version bump from the 0.99 release if it were semantically
versioned.
* Allow environment copy to take a passed-in transaction.
This is the first released feature that requires a (very small)
patch to the underlying C library. By default, the patch will
be applied unless this module is built with LMDB_PURE
environment variable set.