Revert "Remove a patch. Those are already undefined by default and log{in,out,wtmp} do not exist in libutil so the configure can't find them and thus they are not used in the build."

This reverts commit 9e4ae8eee0349bb07de81f2d7974698571676f4f.
	- Remove a patch. Those are already undefined by default and log{in,out,wtmp} do not exist in libutil so the configure can't find them and thus they are not used in the build
	- Stop using pkg-install by now. Rename the file pkg-install.old (will be probably removed in the future)
	- Update pkg-plist
	- Update the Makefile a bit