Define MANUAL_AUTH_URL in baconfig.h
Define MANUAL_AUTH_URL in baconfig.h

This value will reference the currently applicable Manual URL for
authentication troublshooting.  Currently the same URL is referenced
in multiple files.  This will allow updating them all (save for .po
translation files) with a single change.

Signed-off-by: Ben Walton <6f9de98cc1f3d6d6e7da9953ca2250e07ad38e43@artsci.utoronto.ca>

rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula,rkorzeniewski/bacula