add phpunit as dev dependency
Merge pull request #18 from steffkes/phpunit-dependency

Add phpunit as dev dependency
define phpcs as well as dev depency
you should execute phpunit from vendor/bin as well
Updated .travis.yml to reflect the addition of phpunit to composer dev dependencies
Use travis code-coverage on scrutinizer
Run PHPCS checks on scrutinizer
Fix #11 - Upgrades autoloader to PSR4
Update README.md

Added badges for packagist.org stats
Update README.md

Remove trending badge - useless now anyway
use PSR2- instead of PSR-Standard
Maintenance tasks:
- Add two additional unit tests for stream errors (StreamSocketClient)
- Suppress error/warning/notice output of stream-functions when
  the result is handled by a custom condition (exceptions for errors)
- Replace @todo with a mention of the propert github issue
- Fix SensioLabs Insight warnings
- Update composer.lock to latest stable dependencies

Fixes #15
Merge remote-tracking branch 'steffkes/phpcs-dependency'

Conflicts:
	README.md
	composer.lock
Fix HHVM crashing on unit-tests
Update README badges

- Flat badges - Yay!
- Remove old/superfluous Bitdeli badge
Update README.md
Update README.md