Bunyan

- **Bad release. Use 0.14.5 instead.**
- Improve error serialization to walk the chain of `.cause()` errors
from the likes of `WError` or `VError` error classes from
[verror](https://github.com/davepacheco/node-verror) and
[restify v2.0](https://github.com/mcavage/node-restify). Example:

[2012-10-11T00:30:21.871Z] ERROR: imgapi/99612 on 0525989e-2086-4270-b960-41dd661ebd7d: my-message
ValidationFailedError: my-message; caused by TypeError: cause-error-message
at Server.apiPing (/opt/smartdc/imgapi/lib/app.js:45:23)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server.setupReq (/opt/smartdc/imgapi/lib/app.js:178:9)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server.parseBody (/opt/smartdc/imgapi/node_modules/restify/lib/plugins/body_parser.js:15:33)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server.parseQueryString (/opt/smartdc/imgapi/node_modules/restify/lib/plugins/query.js:40:25)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server._run (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:579:17)
at Server._handle.log.trace.req (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:480:38)
Caused by: TypeError: cause-error-message
at Server.apiPing (/opt/smartdc/imgapi/lib/app.js:40:25)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server.setupReq (/opt/smartdc/imgapi/lib/app.js:178:9)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server.parseBody (/opt/smartdc/imgapi/node_modules/restify/lib/plugins/body_parser.js:15:33)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server.parseQueryString (/opt/smartdc/imgapi/node_modules/restify/lib/plugins/query.js:40:25)
at next (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:550:50)
at Server._run (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:579:17)
at Server._handle.log.trace.req (/opt/smartdc/imgapi/node_modules/restify/lib/server.js:480:38)

- [issue 45] Fix bunyan CLI (default output mode) to not crash on a 'res'
field that isn't a response object, but a string.

- [issue 44] Fix the default `bunyan` CLI output of a `res.body` that is an
object instead of a string. See issue38 for the same with `req.body`.

- [pull 41] Safe `JSON.stringify`ing of emitted log records to avoid blowing
up on circular objects (by Isaac Schlueter).

- [issue 39] Fix a bug with `client_req` handling in the default output
of the `bunyan` CLI.

- [issue 38] Fix the default `bunyan` CLI output of a `req.body` that is an
object instead of a string.