Implementación de Ambiente de sistema

 On branch dev
	new file:   module-api/src/main/java/com/bitblend/amigo/entities/Realm.java
	modified:   module-api/src/main/java/com/bitblend/amigo/entities/Role.java
	new file:   module-api/src/main/java/com/bitblend/amigo/rest/artifacts/core/RealmWSInfo.java
	modified:   module-core/src/main/java/com/bitblend/amigo/security/CoreAuthenticator.java
	modified:   module-core/src/main/resources/META-INF/persistence.xml
	modified:   module-core/src/main/resources/import.sql