“The financially troubled Oakland Ballet has given itself another month to raise the $500,000 it needs to keep from going under. And it has laid off two staff members as part of its bare-bones survival plan. In April, the respected company, which has a $250,000 debt, canceled its fall season, didn’t renew the contracts of its 22 dancers and announced it would fold if it couldn’t raise $500,000 by May 31. So far, the ballet has raised $300,000…”