recovery: add debug to range calculations
recovery: simplified elliptics_create_node
recovery: create direct session for bulk_write
recovery: more resonable defaults
recovery: removed useless log
recovery: compute recovery ranges only once
recovery: improved progress logging
recovery: simplified diff between two containers
recovery: more sensible optimization notes
recovery: simplify naming of diffs
recovery: display size of data on recovery
recovery: improved diff logging
python: removed non-existient argument