java: make CephMountTest use user.* xattr names

Changes to the xattr code in Ceph require
a few tweaks to existing test cases.
Specifically, there is now a ceph.file.layout
xattr by default and user defined xattrs
are prepended with "user."

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Joe Buck <jbbuck@gmail.com>
Reviewed-by: Noah Watkins <noahwatkins@gmail.com>
OSD: always activate_map in advance_pgs, only send messages if up

We should always handle_activate_map() after handle_advance_map() in
order to kick the pg into a valid peering state for processing requests
prior to dropping the lock.

Additionally, we would prefer to avoid sending irrelevant messages
during boot, so only send if we are up according to the current service
osdmap.

Fixes: #4064
Backport: bobtail
Signed-off-by: Samuel Just <sam.just@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
osd/OSDCap: tweak unquoted_word parsing in osd caps

Newer versions of spirit (1.49.0-3.1ubuntu1.1 in quantal, in particular)
dislike the construct with alnum and replace the - and _ with '\0' in the
resulting string.

Fixes: #4122
Backport: bobtail
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
osd/OSDCap: add unit test for parsing pools/objects with _ and -

Hunting #4122, where a user saw

2013-02-13 19:39:25.467916 7f766fdb4700 10 osd.0 10  session 0x2c8cc60 client.libvirt has caps osdcap[grant(object_prefix rbd^@children  class-read),grant(pool libvirt^@pool^@test rwx)] 'allow class-read object_prefix rbd_children, allow pool libvirt-pool-test rwx'

Signed-off-by: Sage Weil <sage@inktank.com>
(cherry picked from commit 2ce28ef1d7f95e71e1043912dfa269ea3b0d1599)
Merge remote-tracking branch 'gh/next'