Update to 1.860
- New upstream release 1.860
- Signal-handling update release
- SIGINT and SIGTERM safety for shared objects during IPC
- IPC safety in MCE::Hobo during SIGINT and SIGTERM
- Method $hobo->exit in MCE::Hobo now sends the SIGINT signal for extra
reliability with MCE::Shared (previously SIGQUIT)
- Bumped MCE dependency to 1.860