message: Update DNS seeds
  Removed dead domains, updated service capabilities
diff: @@ -118,12 +118,11 @@ public:
  assert(genesis.hashMerkleRoot == uint256S("0x97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9"));
  // Note that of those with the service bits flag, most only support a subset of possible options
  + vSeeds.push_back(CDNSSeedData("loshan.co.uk", "seed-a.litecoin.loshan.co.uk", true));
  + vSeeds.push_back(CDNSSeedData("thrasher.io", "dnsseed.thrasher.io", true));
  vSeeds.push_back(CDNSSeedData("litecointools.com", "dnsseed.litecointools.com"));
  vSeeds.push_back(CDNSSeedData("litecoinpool.org", "dnsseed.litecoinpool.org"));
  - vSeeds.push_back(CDNSSeedData("xurious.com", "dnsseed.ltc.xurious.com"));
  vSeeds.push_back(CDNSSeedData("koin-project.com", "dnsseed.koin-project.com"));
  - vSeeds.push_back(CDNSSeedData("weminemnc.com", "dnsseed.weminemnc.com"));
  - vSeeds.push_back(CDNSSeedData("loshan.co.uk", "seed-a.litecoin.loshan.co.uk"));
  base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,48);
  base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
  @@ -220,8 +219,6 @@ public:
  vSeeds.clear();
  // nodes with support for servicebits filtering should be at the top
  vSeeds.push_back(CDNSSeedData("litecointools.com", "testnet-seed.litecointools.com"));
  - vSeeds.push_back(CDNSSeedData("xurious.com", "testnet-seed.ltc.xurious.com"));
  - vSeeds.push_back(CDNSSeedData("wemine-testnet.com", "dnsseed.wemine-testnet.com"));
  base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  