Start changing elliiptics python api
Merge pull request #199 from shaitan/recovery

Removed eid and id_range from IteratorResult. Fixed bugs with different node with equal eid and id_range.
v2.24.13.28
Updated dependencies
v2.24.13.29
src_key and quiet options for exec (-c) command

-k supplies src_key, -q strips all output but data
Proper support for session::exec in python binding

Added support for src_key.
src_key and data args made optional.
Added async variant "exec_async", ExecResultEntry gives access to exec_context fields.
Added "exec_" as an alias to "exec_event": it's shorter, distorts original name less and follows PEP-8 recommendation.

Added __repr__ method to elliptics.Id (prints group, id prefix, original string).
Modified elliptics.Id.__str__ to always return entire id instead of 6 byte prefix.
Merge pull request #202 from ijon/proper-exec-for-python

Proper support for session::exec in python binding
Merge pull request #200 from ijon/ioclient-exec-with-src-key

src_key and quiet options for exec (-c) command
Fixed unexpected exit after iteration stage if local node is empty.
Added iterator support for module backend
Merge pull request #203 from shaitan/shaitan

Fixed dc recovery.
Use log-level DNET_LOG_DATA instead of special 'quiet' log output mode
Initialize convert_usecs to prevent unintialized usage in case session.write() fails and we jump to error output
v2.24.13.30
Restored lost mk_container_name import
Merge pull request #205 from shaitan/shaitan

Restored lost mk_container_name import
Fixed getting recovering node group id from routes when groups is specified. Added ability to specify groups for recovering.
Merge pull request #206 from shaitan/shaitan

Added ability to recover node by using only nodes from specified groups in dc recovery.
v2.24.13.31