README: remove experimental note

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
pacsift: allow leading root in paths

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
paccheck: skip tests for noextract/noupgrade files

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
paclog: highlight transaction messages

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
paclog: add ISO-8601 date support

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
README: use `date` in paclog example

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
t: add low-level tests

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>