New difficulty algorithm

A new difficulty algorithm was introduced in order for the Balkancoin network to be more resistant to attackers with huge hash rate that would go away after difficulty is adjusted and leave regular miners with a block time way higher than the normal one of 30 seconds that BKC has. This was a hard fork and all users needed to upgrade prior to block 60000 when the hard fork took place. Positive effect was accomplished leading to decreasing number of stolen blocks and faster adjusting of the difficulty making the mining process more consistent.