Bug fix release

auto-update-system: Tolerate non-zero git stash exit
auto-upgrade-base: Fix misplaced install
whoami -> id -un (deprecated)
read -p -> printf, read (SunOS -p has different meaning)
auto-clean-pkgsrc: Cleaner check for pkgin
auto-adduser: Insist on AD password
auto-pkgsrc-delete-all: Protect openssl, may be needed by pkg_install
auto-install-packages: Install ports tree if needed