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
Update README

[ci skip]
Remove var_dump() from extensions.feature

The var_dump() seems to be a remnant of development work, not really part of the feature itself.
Merge pull request #528 from FGM/patch-1

Remove var_dump() from extensions.feature
Added back ability to use custom classes as formatters
Snippets from non english scenarios
check if argument is string in isStringAndMatchesPattern
better readable string check
Merge pull request #539 from vaidasm/hotfix/is-string-check

check if argument is string in isStringAndMatchesPattern
Merge pull request #538 from kibao/feature/snippets-non-english-scenarios

Snippets from non english scenarios
Downgrade Gherkin dependency to stable
Bump changelog