refs CNVS-7877
* counter updates have to be in their own batch in 1.2+
* add the use_cql3? method to cassandra gem, even
though we're not updating it yet
* slight change in syntax for table creation
* 1.2 doesn't return schema info in the schema cql command;
use a query to get tables
Change-Id: I22642b0fb99e744080f9a7efd0b3d0372de020b9
Reviewed-on: https://gerrit.instructure.com/25361
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: August Thornton <august@instructure.com>
Reviewed-by: Brian Palmer <brianp@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>