[arch-general] Update register/log

[Manne Merak]

Is there a register or log that lists the history of package updates.
I need to know what versions of encfs and openssl were updated and when.
I am still unable to mount my 1.5 year old volume because of broken 
encfs and openssl update.
(I did read all the bug reports associated with this, they recommend 
downgrading to openssl 0.9.8l, which I already tried)

Manne