Be willing to start new processes every 0.1s rather than 2s by default
fixup substitution of "fm" in pipelines
bugfix: store: deal with args that have no dirname
be more informative when its the final part of a pipline that cannot exec
in rare occurrences a .status file may be corrupt.  deal more gracefully with that.  XXX Should we delete it?
Merge branch 'master' of github.com:mfisk/filemap