Update fork detection parameters for Dogecoin block time
Update fork detection parameters for Dogecoin block time

I've multiplied fork detection parameters by 5 - the wall clock time elapsed for "long" forks
is therefore half that of Bitcoin, but IMHO those figures are excessive for a chain with 1
minute block times.

koharjidan/dogecoin,patricklodder/dogecoin,koharjidan/dogecoin,dogecoin/dogecoin,patricklodder/dogecoin,psionin/smartcoin,koharjidan/dogecoin,psionin/smartcoin,patricklodder/dogecoin,dogecoin/dogecoin,patricklodder/dogecoin,dogecoin/dogecoin,dogecoin/dogecoin,koharjidan/dogecoin,patricklodder/dogecoin,psionin/smartcoin,psionin/smartcoin,koharjidan/dogecoin,dogecoin/dogecoin,psionin/smartcoin,psionin/smartcoin,koharjidan/dogecoin,dogecoin/dogecoin