data-sort: kick-in only on initial load
misc: renamed EBLOB_ITERATE_READONLY -> EBLOB_ITERATE_FLAGS_READONLY
Log when level == eblob->log_level, not only when level is lower than enabled in eblob.
Return -EALREADY when defrag already started and client requests is again.
defrag: less granular stat.sort_status
Merge branch 'devel' into new-api
Added defrag status checker function
Merge branch 'master' into devel
Merge branch 'devel' into new-api