v10.1:

- now if miner has to recreate DAG for devfee, new DAG generation time will be included in devfee time.
- improved "-gser" option, now you can set custom delay between DAG generation on GPUs, check Readme for details.
- added detailed stats about rejected shares per GPU ("s" key).
- added "-logsmaxsize" option.
- fixed issues with "-r -1" option value.
- EthMan: added detailed stats mode in web server.
- a few minor bug fixes and improvements.