Group add completions to history on finish now works.
Fixed job color and symbol.
On group finish, set s to following.
History keys in task groups for the group itself, @h, and for each job, &h, each with complete histories of done;due completions. Day view shows the most recent "show_completions" from @h. Individual jobs are shown only for the currently active instance.
Merge branch 'master' into grp_tasks
Formatting tweak for @f and @h entries.
tagged version 0.1.23