Updated the contribution guidelines for the branch renaming
Merge pull request #521 from stof/contributing_rules

Updated the contribution guidelines for the branch renaming
Introduce AfterExerciseSetup and BeforeExerciseTeardown events
Introduce AfterSuiteSetup and BeforeSuiteTeardown events
Introduce AfterBackgroundSetup and BeforeBackgroundTeardown events
Introduce AfterFeatureSetup and BeforeFeatureTeardown events
Introduce AfterOutlineSetup and BeforeOutlineTeardown events
Introduce After(Scenario|Example)Setup and Before(Scenario|Example)Teardown events
Introduce AfterStepSetup and BeforeStepTeardown events
Merge pull request #522 from Behat/bugfix/real-before-events

Fix behaviour of Before/After events
Update changelog
Fix a suite initialization bug when suite contexts have arguments
Fix wrong handling of an empty `behat.yml`
Explicitly fail when provided context argument is not supported by constructor
Fix extension registration shortcut for 3rd-part plugins

With this thing fixed, you now can use a shortcut:

    Your\SuperExtension

instead of the fully-qualified extension class name:

    Your\SuperExtension\ServiceContainer\SuperExtension

inside your `behat.yml`:

    default:
        extensions:
            Your\SuperExtension: ~
Bump changelog
Fixed ExtensionManager::getFullExtensionClass Extension suffix correction.
Merge pull request #526 from FrenkyNet/master

Fixed ExtensionManager::getFullExtensionClass
Bump changelog
Exclude phpspec and phpunit dependencies from phar generation