Add default dateFormat ISO8601 for date field.
Parse DateTime format from JMS\Serializer\Annotation\Type annotation.
Fix bug option, reader and writer parameters was not being apply if value is set.
Fixed missing required bundle

If you installing just as folows you get ParameterNotFoundException, since required parameter from JMSSerializerBundle is missing in services.xml
Merge pull request #21 from me1ifaro/patch-1

Fixed missing required bundle