Chased portaudit and pkg audit Output

Chased changes in output wording of portaudit and pkg audit. Reported by Dominique Gagnon <gagnon.dom@gmail.com>.
Applied Patch to Print Package List and Perf Data

Applied a patch from Dominique Gagnon <gagnon.dom@gmail.com> with slight changes to list the packages available for upgrade and to print associated perf data.
Added CHANGELOG Notes; Changed Version Numbers

Added notes in the CHANGELOG in preparation for a v0.7.1 release and changed the version number and release date in the script.