logger: added method for dumping blob config and disk control flags.
core: added defrag_generation counter that is increased each time when blobs are defraged. It is used by code that could have TOC vs TOU race between cache lookup and changing of record.
logs & json stat: added string representation of want_defrag status.
fixed base size (bctl_size) in eblob_check_record.
defrag: sort unsorted blobs even if defrag is not needed.
init: set errno if init has been failed.
Merge pull request #94 from shaitan/tmp

Fixes