CatalogMongo: improved getStudy and createAnalysis.
catalog: Some methods implemented in CatalogManager
Merge branch 'feature/catalog' of https://github.com/jmmut/opencga into feature/catalog

Conflicts:
	opencga-catalog/opencga-catalog-core/src/main/java/org/opencb/opencga/catalog/core/db/CatalogMongoDBAdaptor.java