Updated Symfony dependency in composer.json
Merge pull request #2 from fixe/patch-1

Updated Symfony dependency in composer.json
Added multiple environments support.
Merge branch 'master' of github.com:tvision/KunstmaanSentryBundle
Updated README.md.
Update README.md
Merge remote-tracking branch 'tvision/master'

Conflicts:
	EventListener/ShutdownListener.php
	composer.json