rgw: rename ENOAPPLY->STATUS_NO_APPLY

Signed-off-by: Greg Farnum <greg@inktank.com>
rgw: rename EAPPLIED->STATUS_APPLIED

Signed-off-by: Greg Farnum <greg@inktank.com>
rgw: move STATUS_NO_APPLY #define into rgw_common.

Signed-off-by: Greg Farnum <greg@inktank.com>
rgw: move STATUS_APPLIED #define into rgw_common.

Signed-off-by: Greg Farnum <greg@inktank.com>
fixup 8267b4ff20b26dfafea0a9302ac8d900c60f5b30: use obj_version instead of RGWObjVersionTracker

We only use the read_version anyway, so just make it a singular obj_version.

Signed-off-by: Greg Farnum <greg@inktank.com>