- before_kill, after_kill hooks introduction
- add a system to pass extra parameters to hooks (to be able to pass the
  process pid to before/after_kill)
before/after_kill => before/after_signal (better)
SIGKILL is always sent
documentation update
add some tests for before_signal and after_signal hooks
add more documentation and examples for hooks
PEP8 compliance

That extra line was breaking the build.
Merge pull request #1 from amarandon/before_signal_hook

Remove a blank line that's breaking the Travis build
started a supervisor page
remove all parenthesis here as @tarekziade proposed
Merge pull request #539 from thefab/before_signal_hook

Add before_signal and after_signal hooks
Update supervisor.rst

Fixed some typos & added references
Removed Travis skips
Merge pull request #541 from mozilla-services/travis-skip

Removed Travis skips
more details on supervisor streams
unused import
Merge pull request #542 from thefab/unused_commit

unused import
first experiment : no more async switches, new method to block without
blocking the event loop
[ ABSOLUTELY NOT READY ]
Get max_age to respect graceful_timemout

This an experiment towards solving #537
Some code can probably be merged with Watcher.begin_stop and Watcher._final_stop
Merge pull request #2 from amarandon/async_experiment

Async experiment with max_age