FileJournal.cc: use reinterpret_cast instead of c-style cast

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
client/Client.cc: prefer empty() over size() for emptiness check

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
crush/CrushWrapper.cc: use reinterpret_cast instead of c-style cast

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
Makefile.am: remove also old *.o/lo files

Make sure all no longer used/build *.o and *.lo files are
removed on 'make clean' e.g. after moving files around in
the src tree or Makefile.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
libcephfs.cc: use reinterpret_cast instead of c-style cast

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
librados.cc: use static_cast instead of c-style cast

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
fuse_ll.cc: use reinterpret_cast instead of c-style cast

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
Paxos.cc: use reinterpret_cast instead of c-style cast

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
Merge pull request #2763 from ceph/wip-da-SCA-20141010

Some fixes from SCA runs

Reviewed-by: Sage Weil <sage@redhat.com>