Set and test person's lastname. Added delete and select_updated (in context) tests
Set and test person's lastname.
Added delete and select_updated (in context) tests

piotras/midgard-core,midgardproject/midgard-core,midgardproject/midgard-core,piotras/midgard-core,midgardproject/midgard-core,piotras/midgard-core,piotras/midgard-core,midgardproject/midgard-core