Signed-off-by: Sean Young <sean.young@monax.io>

The keys client and and server is now built into burrow, see the
"burrow keys" command.

Signed-off-by: Sean Young <sean.young@monax.io>

deployment package will provide a singular object to provide to
provisioning and orchestration systems like ansible, kubernetes,
terraform

Signed-off-by: Silas Davis <silas@monax.io>

packages, and dubious tests, relocate nearer to code being tested.
Rewording of some docs, use gopkg for deps in makefile.

Signed-off-by: Silas Davis <silas@monax.io>