make sure we pass an option hash with symbols to workers
make sure we pass an option hash with symbols to workers

stop logging exceptions on crashes; they are already logged

pantheon-systems/berkshelf-api,gueux/berkshelf-api,pantheon-systems/berkshelf-api,gueux/berkshelf-api,pingworks/berkshelf-api-binrepo-store,damacus/berkshelf-api,damacus/berkshelf-api,pantheon-systems/berkshelf-api,pingworks/berkshelf-api-binrepo-store,pingworks/berkshelf-api-binrepo-store,gueux/berkshelf-api,damacus/berkshelf-api