allow to create a RDD using DeepJobConfig.
code reformated
Merge branch 'develop' into deepConfigAPIOld

Conflicts:
	deep-cassandra/src/test/java/com/stratio/deep/cassandra/rdd/CassandraCql3RDDTest.java
	deep-cassandra/src/test/scala/com/stratio/deep/rdd/ScalaCassandraEntityRDDTest.scala
	deep-core/src/main/java/com/stratio/deep/core/rdd/IDeepSparkPartition.java
	deep-elasticsearch/src/main/java/com/stratio/deep/config/CellDeepJobConfigES.java
	deep-elasticsearch/src/main/java/com/stratio/deep/config/EntityDeepJobConfigES.java
	deep-elasticsearch/src/main/java/com/stratio/deep/utils/ESValidator.java
	deep-elasticsearch/src/main/scala/org/apache/spark/rdd/DeepElasticSearchRDD.scala
	deep-elasticsearch/src/test/java/com/stratio/deep/entity/ESCellTest.java
	deep-elasticsearch/src/test/java/com/stratio/deep/testentity/BookEntity.java
	deep-elasticsearch/src/test/java/com/stratio/deep/testentity/MetadataEntity.java
	deep-mongodb/src/main/java/com/stratio/deep/mongodb/config/CellDeepJobConfigMongoDB.java
	deep-mongodb/src/main/java/com/stratio/deep/mongodb/config/EntityDeepJobConfigMongoDB.java
	deep-mongodb/src/main/java/com/stratio/deep/mongodb/entity/MongoCell.java
	deep-mongodb/src/test/java/com/stratio/deep/entity/MongoCellTest.java
	deep-mongodb/src/test/java/com/stratio/deep/testentity/BookEntity.java
	deep-mongodb/src/test/java/com/stratio/deep/testentity/MetadataEntity.java
added new examples
added few examples
fixed cassandra extractor
added new test
deleted comments
deleted test conf
Merge branch 'deepConfigAPIOld' into develop

Conflicts:
	deep-cassandra/src/main/java/com/stratio/deep/cassandra/config/CassandraDeepJobConfig.java
	deep-commons/src/main/java/com/stratio/deep/commons/config/ExtractorConfig.java
	deep-mongodb/src/main/java/com/stratio/deep/mongodb/config/MongoDeepJobConfig.java
split and bisecFactor fixed