Warning when provided 'within' argument will be ignored.
Squashing bug causing full/pair to lose incomplete cases, thus failing or missing benefit of scores()/fill.NAs().
updating version number, adding valgrind to all R CMD checks
integrating Peter S's solution to the valgrind warnings
updating NEWS file for 0.9-3 release
updated docs and examples for distUnion and antiExactMatch
updating documentaiton and examples for istUnion and antiExactMatch
Adjusted NEWS wording.
updating examples to avoid extraneous errors
Merge branch 'master' into missing_x