doc revisions including addition of manual; midway through changes to selection and metadata mechanism
removed deleted files from repo
Merge branch 'add-hash'
Merge branch 'update-version'
Merge branch 'add-alias'
Merge branch 'release-notes'
Merge branch 'revise-README'
Merge branch 'public-maint'
Merge branch 'update-README'
Merge branch 'public-maint'
use of pos (label position) parameter enabled in pco()
begin code for automatic shape selection for plots
Merge branch 'add-pos'
reorg for continuing transition to new package version
reliability and functionality greatly improved; test suite mostly (but not completely) validated; docs not yet included
more
more polish
some docs
Merge pull request #71 from braithwaite/master

lengthy additions to tests & docs