Recovery: Enabled -r reusable (so you can specify several remotes). -o should be followed by adress of node that should be processed.
Monitor: clear m_cmd_info_current after swap.
Added debian/pyversions to gitignore.
Recovery: increased informativity of error logs with exception.
Recovery: Added merge recovering the list of keys from dump file.
Recovery: fixed stats group name in merge. Show all key at read/write/merge/remove failures. Fixed exit code in dc.
Updated recovery docs: -o now should be followed by node address, -f /puth/to/dump_file now can be used in merge.
Documentation: added docs how merge works with -f/--dump-file.
Docs: described usage of -r.
Recovery: return None if shards couldn't be merged.
indexes: Indexes metadata field added

- index metadata stores size of index
- method for reading index metadata added to session
- foreign library 'cmp' for low level work with msgpack added
- test for index metadata added
Recovery: put comments on recovery code.
cache: Read behaviour when (offset + read_size > file_size) changed

Now, in case when there are insufficient bytes on read with offset,
read will return data from offset position till the end of file.
This is needed when we try to read first 100 bytes of file and
file is shorted than 100 bytes.
indexes: Fix in get_index_metainfo.

strcpy() replaced with memcpy() to handle null characters in msgpack.
Core: fixed hanging up iteration on cond_wait.
There was race condition: after successful dnet_send_reply another thread removes the state and before original thread stucks on waiting condition variable.
After that no one thread will wake up original thread via broadcasting conditional variable.
Python: used one argument for id and context at exec_, made src_key last argument.
tests: indexes_metadata test now aggregates shards answers

Now get_index_metadata return separate metadata from each shard, then it
should be aggregated to get total metadata for whole index
indexes: Write to log on incorrect metadata msgpack
indexes: docs added for get_index_metadata function
Recovery: Fixed splitting ranges in small pieces for merging them in different processes.
Replaced pickle with CPickle
fixed 'zero length field name in format' bug on Python2.6
Added traceback print to exception log.