Auto merge of #1750 - ebfull:add-checkpoint, r=ebfull

Add checkpoint at block 2500.

src/chainparams.cpp

@@ -125,11 +125,12 @@ public:
 
         checkpointData = (Checkpoints::CCheckpointData) {
             boost::assign::map_list_of
-            ( 0, consensus.hashGenesisBlock),
-            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
+            (0, consensus.hashGenesisBlock)
+            (2500, uint256S("0x00000006dc968f600be11a86cbfbf7feb61c7577f45caced2e82b6d261d19744")),
+            1477973071, // * UNIX timestamp of last checkpoint block
+            22063, // * total number of transactions between genesis and last checkpoint
+                   //   (the tx=... number in the SetBestChain debug.log lines)
+            5083   // * estimated number of transactions per day after checkpoint
         };
 
         // Founders reward script expects a vector of 2-of-3 multisig addresses