More changes for Alt currency for swaps (BTC, LTC, ...).
   Set the minRate (BTC) = 1.2775 (yearly) - (0.0035% daily) - temporary workaround for lowball offers
   Removed currency "DRK", because there is not swaps.
   minFunds is now set to "0.2" as a temporary workaround. This still needs to be calculated.