Resolves CROSSDATA-297
Resolves CROSSDATA-298
Some changes for solving CROSSDATA-299
CROSSDATA-299 solved
Resolves CROSSDATA-300
Merge branch 'release/0.1.1' of https://github.com/Stratio/crossdata into develop

Conflicts:
	crossdata-common/src/main/java/com/stratio/crossdata/common/metadata/ConnectorMetadata.java