modified:   database_service/.classpath
	modified:   database_service/pom.xml
	deleted:    database_service/src/main/java/org/elearning/models/lesson/BasicLesson.java
	modified:   database_service/src/main/java/org/elearning/models/lesson/GenericLesson.java
	new file:   database_service/src/main/java/org/elearning/storage/DataStorage.java
	new file:   database_service/src/main/java/org/elearning/storage/impl/JcrDataStorage.java
	new file:   lib/jcr-1.0.jar
	new file:   lib/portlet-api-2.0.jar