added monitoring interface
take 2
automatically enable monitoring when required
reworked exposed api
use internal notifications system
provide an api call to start the probe "system"
added probe tests
reworked probe tests to get rid of timing issues
remove empty lines
probe refactor
removed  reset from celluloid.rb
check if actor exists before calling it
newline
Include pooled threads and non-actor threads in stack dump
Add FreeBSD support to CPUCounter
Merge pull request #330 from thibaudgg/freebsd_cores

Add FreeBSD support to CPUCounter
Bump version to 0.16.0.pre (unreleased)
Move JRuby check farther down in celluloid.rb
Merge pull request #284 from schmurfy/monitoring_api

added monitoring interface
Merge pull request #267 from celluloid/stack_dump_improvements

Stack dump improvements