added close to  extractor server
refactor, new integration mongodb
Merge branch 'testRefactorAbsolut' of github.com:Stratio/stratio-deep into testRefactorAbsolut

Conflicts:
	deep-commons/src/main/java/com/stratio/deep/rdd/IDeepHadoopRDD.java
	deep-core/src/main/java/com/stratio/deep/core/context/DeepSparkContext.java
	deep-core/src/main/java/com/stratio/deep/core/extractor/client/ExtractorClient.java
	deep-core/src/main/java/com/stratio/deep/core/extractor/client/ExtractorClientHandler.java
	deep-core/src/main/java/com/stratio/deep/core/rdd/DeepRDD.java
	deep-core/src/main/java/com/stratio/deep/core/rdd/IDeepHadoopRDD.java
	deep-core/src/main/scala/org/apache/spark/rdd/DeepHadoopRDD.scala
	deep-spark/src/main/java/com/stratio/deep/rdd/IDeepHadoopRDD.java