viewer: w/o -> without since it's a hint anyway

viewer: show second time in .html view

viewer: only show time without cache in .asc (graph) view

bench: make mintime and mintries work as usually expected

deploy.sh: explicitly use tip for newesthg

viewer: header in tsv

update.sh: set -x for now

.sh: old-style variable export for compatibility

bench: default revsets should be an iterable

viewer webapp