Pysyncobj

* 163 Added property hasQuorum (to detect if node is connected to cluster)
* 161 Fixed exception when disconnected during connection

- Removed accidentally added debug logging, 153

- Bind all interfaces by default, 150
- Fixed exception when unable to resolve dns, 142

- Fixed bug with different cluster configuration on different nodes with journal enabled, 133
- Fixed bug with unable to reconnect with enabled encryption, 127
- Fixed readonly nodes with enabled encryption, 126
- Fixed bug with adding wrong node while changing cluster configuration, 131
- Use already resolved node ip when connecting to node instead of host, 132
- Syncobj_admin simplified, 129
- Added utility functions callback, 128

- Fixed stuck when readonly nodes disconnected, 121
- Added ability to specify self address inside partner addresses, 122

* Fixed destroy exception, 116
* Fixed dns resolve problem, 119