Squashed commit of the following:

commit 15a6ac724498702519cdd8b0a0bcccc7bf2e8c04
Author: Philip Thompson <philip.thompson@datastax.com>
Date:   Mon Oct 20 11:51:31 2014 -0500

    Correct command name

commit 20bcc725cb72913b109317c53a559865351e6c1d
Author: Philip Thompson <philip.thompson@datastax.com>
Date:   Fri Oct 17 14:12:16 2014 -0500

    Add invalidatecache command
Merge pull request #190 from pcmanus/invalidate-cache

Squashed commit of the following: