v1.0.0-beta1

• More unit tests.
• Throw exceptions when required config is missing, easier to understand what's wrong.
• Refactoring the field mapping hydrators to reduce duplication.
• Moving the hydrator factory classes into their own namespace.
• Updating composer.json versions:
  • ocramius/generated-hydrator 1.1 -> 1.2
  • illuminate/database 5.1 -> 5.2
• Fixed AbstractConfiguration::getEntityName() to use the proxy inflector.
• Added a check for entities being an instanceof EntityInterface when we call getId().