ccminer can be crashed with API at port 4068

[PSLLSP]

When several pools are configured, then switchpool command can be used on API at port 4068 to change mining pool. Switch of pools is not bullet proof and miner can crash with segmentation fault; there is a bug in the ccminer code...

Switch pool every 40 seconds:

$ while sleep 40; do echo "switchpool" | nc localhost 4068; done

Command switch could have a parameter, an ID of pool to use:

Switch to the first pool:

$ echo "switchpool|0" | nc localhost 4068