recovery: removed statement that have no effect
recovery: do not automatically cache node and session
eblob: do not call blocking function under mutex
recovery: fixed log message
recovery: more useful statistics
recovery: do not use __wrapped__ method of lru_cached objects
recovery: do not propagate elliptics exceptions from subprocess
Merge pull request #118 from SaveTheRbtz/master

Eblob backend read speedup and small recovery fixes