Recovery: Replaced merge by deep_merge with removing of the last. Used FileHandler without rotation for dnet_recovery logs.
Recovery: Added -o option to merge which limits it to one node.
Merge pull request #287 from shaitan/recovery

Recovery
Merge pull request #288 from shaitan/lts

Recovery: fixed removed_bytes in statistics for keys which hasn't been copied because proper node already has newer keys datas.
Merge pull request #286 from IIoTeP9HuY/cache_treap

Cache treap
Merge branch 'master' of https://github.com/reverbrain/elliptics into cache_treap