- Add pam_loginuid-log_write_errors.diff: log significant loginuid
write errors
- pam_xauth-sigpipe.diff: avoid potential SIGPIPE when writing to
xauth process

- Update to current git (Linux-PAM-git-20140127.diff), which
obsoletes pam_loginuid-part1.diff, pam_loginuid-part2.diff and
Linux-PAM-git-20140109.diff.
- Fix gratuitous use of strdup and x_strdup
- pam_xauth: log fatal errors preventing xauth process execution
- pam_loginuid: cleanup loginuid buffer initialization
- libpam_misc: fix an inconsistency in handling memory allocation errors
- pam_limits: fix utmp->ut_user handling
- pam_mkhomedir: check and create home directory for the same user
- pam_limits: detect and ignore stale utmp entries
- Disable pam_userdb (remove db-devel from build requires)