make Git versioning resilient to non-git tarballs

closes #24

make Git versioning resilient to non-git tarballs

closes #24

minor wordsmithing of INSTALL instructions from PR #22

update version numbers

restore derived files to repo

restore derived files to repo

filter more junk out of distributed tarball/zip files

standard checkin preparing to export version 2.11b

standard checkin preparing to export version 2.11a

standard checkin preparing to export version 2.11