Fix some install and rpm SPEC issues

Fixing the following issues
- spec: use %{_sbindir} instead of /usr/sbin
- Makefile: install ceph-* python scripts to /usr/sbin directly
- spec/debian: don't move ceph-disk* and ceph-create-keys around after installation, they get installed now directly to /usr/sbin
- spec: reorder and fix ceph file list
- spec: use macros for standard directories
- spec: fix udev rules.d files handling
- spec: remove some twice created directories
- spec/debian: add installed but not packaged files to ceph-test