[issue #96] Fix `bunyan` to default to paging by default in node 0.10.0.
prepare for 0.21.4 release
prep for future dev
runtime log snooping as a name sugegstion from dap for bunyan -p
issue #104: `log.reopenFileStreams()` convenience method to be used with external log rotation.
prepare for 0.22.0 release
prep for future dev