MFH: r503784 r503787

Bumped seahub version for init script to fix gunicorn binary name
Fix checksum due to retagged version

Change currently unused init var seahub_host so
there is no breakage for current users of seahub.

Change hard coded 0.0.0.0 for gunicorn start to
seahub_host.

PR: 237366 237367
Approved by: ports-secteam (joneum)