installer: rpm_pkg_ld.c (HEAD) rpminstall.c (HEAD)

[mis]

Module name:	installer
Changes by:	mis	03/04/01 17:49:07

Modified files:
	rpm_pkg_ld.c rpminstall.c

Log message:
- INSTS_UPGRADE is like REINSTALL or DOWNGRADE a INSTALL modifier
- working ignore{arch,os}
- continuation of poldeklib work