clean up the upser executor and use the same schema for update inside upsert
setversion 4.4
Merge pull request #1406 from VoltDB/upsert-ee-fix

clean up the upser executor and use the same schema for update inside up...
Merge branch 'master' into ENG-6312-simple-agg-temp-table

Conflicts:
	src/ee/executors/upsertexecutor.cpp