Added functions capacity to Connector's Manifest
Merge remote-tracking branch 'origin/develop' into develop
new datastore and connector manifest definition to allow functions
Update Manifest to allow functions.
Remove old beans generated with the previous version of the manifest
New beans generated with the new Manifest
Merge branch 'feature/Crossdata-166' of https://github.com/Stratio/crossdata into feature/CROSSDATA-270

Conflicts:
	crossdata-core/src/main/java/com/stratio/crossdata/core/normalizer/NormalizedFields.java
	crossdata-core/src/main/java/com/stratio/crossdata/core/query/SelectValidatedQuery.java
	crossdata-core/src/test/java/com/stratio/crossdata/core/validator/statements/SelectStatementTest.java