* pam_chos/pam_chos.c, pam_chos/pam_chos.h: Add configuration tracking structure for pam_chos.  Implement user_conf_file and fail_to_default options.
* pam_chos/pam_chos.c: Whitespace cleanups
* pam_chos/pam_chos.8: Initial manpage for pam_chos