MFC r312453:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This implifies pathing in make/displayed output

MFC r274138,r274149:

r274138 (by des):

Hook up OpenPAM's own unit tests to the build.

r274149 (by markj):

Create a directory for the PAM tests.

MFH (r262530): fix is_upper() predicate (almost two years late...)
MFH (r271614): remove incorrect svn properties
MFH (r274145): cast-qual bugs in tests
MFH (r288070): restore correct module search path semantics

Also merge upstream r854, committed to head as part of r280031, which
fixes cast-qual bugs in libpam itself.

MFH (r271624): Upgrade to OpenPAM Ourouparia.

Approved by: re (gjb)

MFH (r271624): Upgrade to OpenPAM Ourouparia.

Approved by: re (gjb)