Merge branch 'dev' into f-more-sql-benchmarking

CHANGELOG.md

src/main/java/caosdb/server/query/CQLParser.g4

src/main/java/caosdb/server/query/Query.java

src/main/java/caosdb/server/query/StoredAt.java

src/main/java/caosdb/server/utils/WebinterfaceUtils.java

src/test/java/caosdb/server/query/TestCQL.java