No Persistence provider for EntityManager named - Usando MAVEN

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
	version="1.0">
	<!--Nome do contexto que configura o Provedor de Persistencia -->
	<persistence-unit name="default">
		<provider>org.hibernate.ejb.HibernatePersistence</provider> 
		<properties>
			<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/dbteste" />
			<property name="javax.persistence.jdbc.password" value="metallica" />
			<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver" />
			<property name="javax.persistence.jdbc.user" value="postgres" />
			<property name="hibernate.cache.provider_class" value="org.hibernate.cache.NoCacheProvider" />
			<property name="hibernate.hbm2ddl.auto" value="update" />
			<property name="hibernate.show_sql" value="true" />
			<property name="hibernate.format_sql" value="true" />
			<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
		</properties>
	</persistence-unit>
</persistence>

package br.com.dkjavaweb.entidade.util;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public class JPAUtil {
	
	private static EntityManagerFactory emf =
			Persistence.createEntityManagerFactory("default");
	
	public static EntityManager getEntityManager(){
		return emf.createEntityManager();
	}

}

package dkjavaweb;

import javax.persistence.EntityManager;

import br.com.dkjavaweb.entidade.Usuario;
import br.com.dkjavaweb.entidade.util.JPAUtil;

public class JPATeste {
	
	public static void main(String[] agrs){
		
		Usuario novo = new Usuario();
		EntityManager em = JPAUtil.getEntityManager();
		
		novo.setNome("Zé");
		novo.setEmail("[email removido]");
		novo.setSenha("123abc");
		
		em.getTransaction().begin();
		em.persist(novo);
		em.getTransaction().commit();
		
	}

}

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>br.com.dk</groupId>
	<artifactId>dkjavaweb</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	<name>dkjavaweb</name>
	<description>Projeto Java Web Avançado</description>

	<!-- Propriedades -->

	<properties>
		<hibernate.groupid>org.hibernate</hibernate.groupid>
		<hibernate.version>4.3.4.Final</hibernate.version>
		<slf4j.version>1.7.6</slf4j.version>
		<postgresql.version>9.1-901.jdbc4</postgresql.version>
	</properties>

	<!-- Propriedades -->

	<dependencies>

		<!-- Dependecia do Hibernate -->
		<dependency>
			<groupId>${hibernate.groupid}</groupId>
			<artifactId>hibernate-entitymanager</artifactId>
			<version>${hibernate.version}</version>
		</dependency>

		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<!-- Banco de Dados -->
		<dependency>
			<groupId>postgresql</groupId>
			<artifactId>postgresql</artifactId>
			<version>${postgresql.version}</version>
		</dependency>
		<!-- Banco de Dados -->

	</dependencies>
</project>

xception in thread "main" java.lang.ExceptionInInitializerError
	at dkjavaweb.JPATeste.main(JPATeste.java:13)
Caused by: javax.persistence.PersistenceException: No Persistence provider for EntityManager named default
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:61)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
	at br.com.dkjavaweb.entidade.util.JPAUtil.<clinit>(JPAUtil.java:10)
	... 1 more