Bunyan

- [issue 499] Fix some `bunyan` CLI exit handling problems.

- Ensure that `bunyan` errors out if attempting to use `-p PID` and
file args at the same time.

- [pull 409, issue 246] Revert a change added to the `bunyan` CLI version
1.0.1 where `SIGINT` was ignored, such that Ctrl+C could not be used to
terminate bunyan. (By zbjornson and davepacheco.)
- [pull 469] Fix a strict mode (`"use strict;"`) error in some versions of
Safari.

- Fix breakage due to a silly last minute "fix 'make check'".

Note: *Bad release.* Use 1.8.8 or later.

- [issue 484] Fix breakage due to 474 in previous release.

Note: *Bad release.* Use 1.8.7 or later.

- [issue 474] Bunyan's `safeCycles` is too slow when logging large objects.