Diferents test
Test for demo
Test for the DeepSparkCOntext createHDFSRDD
adding cassandra tests
Merge branch 'develop' of github.com:Stratio/stratio-deep into develop

Conflicts:
	deep-cassandra/src/main/java/com/stratio/deep/cassandra/cql/DeepRecordReader.java
	deep-cassandra/src/main/java/com/stratio/deep/cassandra/util/CassandraUtils.java
	deep-commons/src/main/java/com/stratio/deep/commons/extractor/utils/ExtractorConstants.java
fixed getPartitionKey
getDecomposedCellValue is not supported by Cells anymore
Functional and unit test now are independent.
Functional and unit tests are now indepent.
Merge remote-tracking branch 'origin/feature/functional-tests' into develop

Conflicts:
	deep-aerospike/src/test/java/com/stratio/deep/aerospike/AerospikeCellExtractorFT.java
	deep-core/src/test/java/com/stratio/deep/core/extractor/ExtractorTest.java
Fix
Readded cassandra to parent pom.xml.
Merge branch 'feature/functional-tests' into develop
Fixed aerospike functional test.
refactor CassandraCell, fixed cassandra test
Merge branch 'develop' of github.com:Stratio/stratio-deep into develop

Conflicts:
	deep-core/src/test/java/com/stratio/deep/core/extractor/ExtractorTest.java
	deep-elasticsearch/src/test/java/com/stratio/es/ESEntityRDDFT.java
Merge branch 'develop' of https://github.com/Stratio/deep-spark into develop
fixed marshallerInstance, added Set marshaller
Fixed for new tests.
Merge branch 'develop' of https://github.com/Stratio/deep-spark into develop