Merge branch 'f-timezone' into 'dev'

CHANGELOG.md

src/main/java/org/caosdb/datetime/UTCTimeZoneShift.java

src/main/java/org/caosdb/server/CaosDBServer.java

src/main/java/org/caosdb/server/ServerProperties.java

src/main/java/org/caosdb/server/resource/InfoResource.java

src/test/java/org/caosdb/datetime/UTCTimeZoneShiftTest.java