[CLEANUP]: Remove redundant commit patch generation from do-tag.sh
[BUGFIX]: Fix spelling error
[NEW SCRIPT]: Added change-use script. This script adds a formatted line to the '/etc/portage/package.use' file. Use if you'd like to compile one package with certain use flags but not others. Obviously Gentoo specific. Use with caution
[FEATURE]: Added check to change-use to make sure a package doesn't already have a line in package.use before adding another.
[NEWSCRIPTS]: Added update.sh and reinstall-backup.sh