Refactored aerospike tests.
Merge branch 'feature/aerospike' into develop

Conflicts:
	deep-aerospike/src/test/java/com/stratio/deep/aerospike/extractor/AerospikeEntityExtractorTest.java
	deep-aerospike/src/test/java/com/stratio/deep/aerospike/extractor/AerospikeJavaRDDTest.java
	deep-core/src/test/resources/message.json
Merge with feature/aerospike