Cequel changes

Updated: 21 Sep 2015

This is documentation for a fork from cequel.

Since there seems not to be a standard way to document a fork's differences from mainline, I'm putting it here.

adapt-to-version branch detects the Cassandra version and optionally applies .reverse to List unshift/prepend arguments because Cassandra had a bug that reversed those. Without this, mainline Cequel should not be used at or beyond Cassandra versions 2.1.3/2.0.13 unless you are sure you are not using List unshift/prepend.

More details in the commit.