Rama postgres

Fusión rama postgres con rama3

src/main/resources/META-INF/persistence.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0">
-    <persistence-unit name="smellswisdomapp" transaction-type="RESOURCE_LOCAL">
-        <provider>org.hibernate.ejb.HibernatePersistence</provider>
-        <properties>
-            <property name="hibernate.dialect"
-                        value="org.hibernate.dialect.MySQLDialect" />
-            <property name="hibernate.connection.driver_class"
-                        value="com.mysql.jdbc.Driver" />
-            <property name="hibernate.connection.username" value="root" />
-            <property name="hibernate.connection.password" value="root" />
-            <property name="hibernate.show_sql" value="true" />
-            <property name="hibernate.connection.url"
-                        value="jdbc:mysql://localhost:3306/smellswisdombd" />
-        </properties>
-    </persistence-unit>
-</persistence>
\ No newline at end of file
+   <persistence-unit name="jpaData" />
+</persistence>