Merge pull request tronprotocol#41 from nguyentruongtho/tho/spelling_fix

Spelling fix blockchian -> blockchain

Author: sasaxie

src/main/java/org/tron/command/PrintBlockchainCommand.java

@@ -28,8 +28,8 @@ public PrintBlockchainCommand() {
 
     @Override
     public void execute(Peer peer, String[] parameters) {
-        Blockchain blockchian = peer.getUTXOSet().getBlockchain();
-        BlockchainIterator bi = new BlockchainIterator(blockchian);
+        Blockchain blockchain = peer.getUTXOSet().getBlockchain();
+        BlockchainIterator bi = new BlockchainIterator(blockchain);
         while (bi.hasNext()) {
             TronBlock.Block block = (TronBlock.Block) bi.next();
             System.out.println(BlockUtils.toPrintString(block));

src/main/java/org/tron/peer/Peer.java

@@ -23,7 +23,6 @@
 import org.tron.core.TransactionUtils;
 import org.tron.core.UTXOSet;
 import org.tron.crypto.ECKey;
-import org.tron.example.Tron;
 import org.tron.protos.core.TronBlock;
 import org.tron.protos.core.TronTransaction;
 import org.tron.utils.ByteArray;
@@ -88,7 +87,7 @@ public static Peer getInstance(String type) {
 
     private void init() {
         initWallet();
-        initBlockchian();
+        initBlockchain();
         initUTXOSet();
         initLoadBlock();
     }
@@ -100,7 +99,7 @@ private void initLoadBlock(){
         }
     }
 
-    private void initBlockchian() {
+    private void initBlockchain() {
         new ConsensusCommand().server();
         if (Blockchain.dbExists()) {
             blockchain = new Blockchain();