fixed unpackLong

Author: frsyuki

src/main/java/org/msgpack/unpacker/LongAccept.java

@@ -39,7 +39,7 @@ void acceptInteger(int v) {
 
  @Override
  void acceptInteger(long v) {
- this.value = (int)v;
+ this.value = v;
  }
 
  @Override

src/test/java/org/msgpack/TestBufferPackUnpack.java

@@ -63,7 +63,7 @@ public void testLong(long v) throws Exception {
 byte[] bytes = packer.toByteArray();
 BufferUnpacker unpacker = new BufferUnpacker();
 unpacker.wrap(bytes);
-int ret = unpacker.readInt();
+long ret = unpacker.readLong();
 assertEquals(v, ret);
  }
 

src/test/java/org/msgpack/TestSetPredefinedTypes.java

@@ -74,8 +74,6 @@ public void testLong() throws Exception {
 testLong(1);
 testLong(Long.MIN_VALUE);
 testLong(Long.MAX_VALUE);
-testLong(Long.MIN_VALUE);
-testLong(Long.MAX_VALUE);
 Random rand = new Random();
 for (int i = 0; i < 1000; i++) {
  testLong(rand.nextLong());