Merge pull request #239 from shaitan/python

Removed useless code.
v2.24.14.21
Merge pull request #240 from shaitan/python

Core: Removed useless node and group_id from dnet_ids_update arguments.
core: get rid of unused function parameters
Recovery: Added using wait_timeout provided by command arg.
Merge pull request #242 from shaitan/recovery

Recovery: Added using wait_timeout provided by command arg.
Merge pull request #241 from shaitan/python

Python: Fixed build on rhel6.