Adding logic for CROSSDATA-270
Update Manifest to allow functions.
Remove old beans generated with the previous version of the manifest
New beans generated with the new Manifest
Parser working fine for CROSSDATA-270
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
Adding logic for CROSSDATA-270
Adding logic for CROSSDATA-270
Adding logic for CROSSDATA-270
Tests for CROSSDATA-270 fixed
Some improvements for CROSSDATA-270
Adding logic for CROSSDATA-270
Test for CROSSDATA-270 fixed
Minor changes for CROSSDATA-270
Planner modified for CROSSDATA-270
Adding logic for CROSSDATA-270
Adapting InMemoryConnector to CROSSDATA-270
Some improvements in InMemoryConnector for CROSSDATA-270 feature
Bug related to CROSSDATA-270 fixed
InMemoryConnector improved to support CROSSDATA-270