Remove mainnet DNS seeds, set checkpoint to genesis

Closes #1185

src/chainparams.cpp

@@ -98,12 +98,15 @@ public:
         assert(consensus.hashGenesisBlock == uint256S("0x69aca142ef33f5d4cdbce357e717dddbb849a8f62f4a9fad3e633c5d0e11974b"));
         assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
 
-        vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
-        vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
-        vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
-        vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
-        vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
-        vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
+        vFixedSeeds.clear();
+        vSeeds.clear();
+        // TODO: set up bootstrapping
+        //vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
+        //vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
+        //vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
+        //vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
+        //vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
+        //vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
 
         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
@@ -127,7 +130,7 @@ public:
         checkpointData = (Checkpoints::CCheckpointData) {
             boost::assign::map_list_of
             ( 0, consensus.hashGenesisBlock),
-            1231006505, // * UNIX timestamp of last checkpoint block
+            genesis.nTime, // * UNIX timestamp of last checkpoint block
             0,   // * total number of transactions between genesis and last checkpoint
                  //   (the tx=... number in the SetBestChain debug.log lines)
             0    // * estimated number of transactions per day after checkpoint