Fix watcher virtualenv site-packages not in PYTHONPATH
Modified contributors
Added test for watcher virtualenv site-packages on PYTHONPATH
Fixed multiplatform separator in pythonpath virtualenv watcher
refactor socket close function
Change case where there is no path when adding watcher virtualenv sitep-ackages to path
fixed the tests
silent stderr
Merge pull request #437 from lambdafu/lambdafu/env-to-all-sections

Ensure env sections are applied to all watchers.
removed verbose
fixed msg name
Merge branch 'mrijken/socket-close-refactor' of https://github.com/lambdafu/circus into lambdafu-mrijken/socket-close-refactor
added a test
Merge branch 'master' of https://github.com/slok/circus into slok-master
reintroduced gevent.signal in sighandler, fixes #433
Implementation of reloadconfig by Marc Rijken.
Merge branch 'master' into lambdafu/master

Conflicts:
	NOTICE
Merge branch 'mrijken/rebased-reload-config' into lambdafu/master

Conflicts:
	circus/arbiter.py
	circus/commands/reloadconfig.py
	circus/sockets.py
	circus/tests/test_reloadconfig.py
	circus/watcher.py