Kudu 0.8.0 deprecated how predicates were specified and introduced
a more simple one.

- define checkstyle configs in as few places as possible
- use checkstyle:check since it has defaults that match what we want (fail after logging to console)
- modules that have current failures set property checkstyle.failOnViolation to false.

The default 10s timeout can be too low when creating large tables on
slow devices. This patch just uses the already-defined default of
60s for that operation.

This version and the previous one are wire compatible, the only code
chance reflects a naming change in the client API.

Replaces numeric status codes with a canonical set of Status objects,
each with a short name and description.
Bindings with more specific errors (e.g., timeouts) return additional
statuses.

This changes the default output from messages like:

   [UPDATE], Return=0, 511

To:

   [UPDATE], Return=OK, 511

Currently doesn't include unit tests since we don't have mock objects for that.