more vignette updates
more vignette updates, README
vignette contraction fixes
Bug caused by messing up exports for itemTestsFuns
fixes improper omission of skipped review items warning
fixes bugs caused by files without '.R' extension
committing doc and unitizer files

These are files we usually defer until major revisions
to commit to avoid too much overhead in our repo
now ensure interactive mode doesn't kick in in non-interactive
removing deleted vignette files due to rename
fixing R CMD check doc issues
Renamed 'unitizer_core' to 'unitize_core'
more R CMD check updates
more R CMD check fixes
version 'bump'

just removing the .9000 from version
now passing R CMD check
NEWS tweaks
tests that return language are compared properly now
fixes to upgrade

upgrade used to cause the stores to be overwritten every
time, even when no upgrade happened.  Also, added some
tests for upgrade
quashed moved store warning
version bump to 0.6.1