Update README.md
Fixed typos
Merge pull request #9 from pborreli/typos

Fixed typos
Merge pull request #8 from cirpo/master

tests are failing if you are not running them on a ubuntu box :)
fixed tests on ubuntu machines having notify-send installed /cc @cirpo
added suggestions on composer.json
added a raw handler for RabbitMQ:
* added the handler
* added the notification interface for RabbitMQ
* added a simple notification class for RabbitMQ
* integrated a test
* refactored tests (duplicated stub code)
fixed tests on stupid php 5.3.3...
updated dependencies
added the HipChat handler
updated examples