Redirect cgminer 3.7.2 & static diff

[ppanther1000]

Thank you very much for your great work on this proxy!! Two questions:

1. Is it possible to disable vardiff and set a static diff?

Feasable workaround? => set vardiffInitial to desired fixed diff and vardiffAllowance to 99999999

2. Loosing miners with buggy cgminer 3.7.2 is too bad:

Best solution would be to detect cgminer 3.7.2 users through the version string during mining subscribe:
{"id": 0, "method": "mining.subscribe", "params": ["cgminer/3.7.2"]}

And send them a {"params": ["192.168.1.1","4444"], "id": null, "method": "client.reconnect"} command in order to connect to annother port (backup stratum) which supports cgminer 3.7.2.

I would love to code it myself, but i am not used to haskell. I suppose, this will take you only 20 minutes to implement.

Thank you very much for your consideration!