rc.d/ppp: add support for -unitN override

 * Man page changes taken from FreeBSD.
openssl: Remove some local changes from the vendor branch.
Merge branch 'vendor/OPENSSL'
openssl: Add our local changes on master.
Import OpenSSL-1.0.1i.
Merge branch 'vendor/OPENSSL'
Adjust things for OpenSSL-1.0.1i.