Adding bin/ to gitignore
Added phpspec to require-dev
Updated Yaml::parse

Using file_get_contents (see
http://symfony.com/doc/current/components/yaml/introduction.html for
details)
Small README fix

Signed-off-by: Alexander Kluth <contact@alexanderkluth.com>
Started spec tests, composer update

Signed-off-by: Alexander Kluth <contact@alexanderkluth.com>