v2.5.0+nanbield

Added

• [conf] Add compatibility string for 'zeus'.
• [vigiles/config] Make kernel config auto-detection the default.

Changed

• [tsmeta] Remove existing tsmeta_dir on startup.

Fixed

• [vigiles/bbclass] Prevent racing against rm_work
• [vigiles/tsmeta] Work around yocto bug for getting cve_version