ceph_authtool.cc: update help/usage text

Added implemented but not listed commands to the help/usage text:
* -g  shortcut for --gen-key
* -a  shortcut for --add-key
* -u/--set-uid to set auid
* --gen-print-key
* --import-keyring

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 9a9a0ef3f9f39909eaeb95eb99db4711a2425af5)
fix init-radosgw* to use the same indentation

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit b4d4e92ed2deae435a24b36d086c1a73e5997855)
init-radosgw*: add status

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 385457f8d871238a896229d0c2cbb25646969f6a)
init-radosgw*: add all sections to usage output

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit a0c5095be3640e98d5541920c19387bf3764a350)
init-radosgw*: fix status return value if radosgw isn't running

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit b5137baf651eaaa9f67e3864509e437f9d5c3d5a)
tools/ceph.cc: add missig 'ceph osd lspools' command to help

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
Merge pull request #573 from dalgaaf/fix/da-cuttlefish-fixes-and-cherry-picks

Cherry-pick some smaller changes from master to cuttlefish

Reviewed-by: Sage Weil <sage@inktank.com>