Add custom Doctrine manager.
Add SiteManager class.
Fix type hint.
Fixed a deprecated call.
Add WordpressEntityManager, use it to store blog ID.
Add Doctrine ORM to composer.
Keep WordpressEntityManager::create() compatible with its parent.

Declaration of
Kayue\WordpressBundle\Doctrine\WordpressEntityManager::create() should
be compatible with that of Doctrine\ORM\EntityManager::create()
Add sites to configuration.
Add multisite usage in README.md.
Update SiteManager to use "path", "host" instead of "pattern" and "hostname_pattern".
Merge branch 'multisite-support' of git://github.com/kayue/KayueWordpressBundle into multisite-support
Minor fix in route.
Update sties options in README.md.
Delete useless class.
Add BlogManager classes.
Throw exception if requested blog does not exist.
Remove site manager and releated code.
Minor blog manager updates.
Update multisite section in README.md.
Complete the blog entity.