After many years, the Rockville Chapel, a community building in the Rockville neighborhood of Rockport, now has a  new sign and sign post.   John Titus and Warren Perry did the installation.    The Chapel is a community resource, and often the site of concerts, gatherings and events — not during the pandemic — but the building still requires ongoing maintenance.   No events are being scheduled for this coming summer, but organizers are optimistically making plans for the fall and the annual Christmas program.   In the meanwhile, repairs and maintenance continue.