Bitcoin to NYC3 and update gitian compile code

contrib/linearize/README.md

@@ -1,5 +1,5 @@
 # Linearize
-Construct a linear, no-fork, best version of the Bitcoin blockchain. The scripts
+Construct a linear, no-fork, best version of the NYC3 blockchain. The scripts
 run using Python 3 but are compatible with Python 2.
 
 ## Step 1: Download hash list

contrib/linearize/linearize-data.py

@@ -2,7 +2,7 @@
 #
 # linearize-data.py: Construct a linear, no-fork version of the chain.
 #
-# Copyright (c) 2013-2018 The Bitcoin Core developers
+# Copyright (c) 2013-2018 The NYC3 Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #

contrib/linearize/linearize-hashes.py

@@ -2,7 +2,7 @@
 #
 # linearize-hashes.py:  List blocks in a linear, no-fork version of the chain.
 #
-# Copyright (c) 2013-2018 The Bitcoin Core developers
+# Copyright (c) 2013-2018 The NYC3 Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #
@@ -22,7 +22,7 @@ def hex_switchEndian(s):
     pairList = [s[i:i+2].encode() for i in range(0, len(s), 2)]
     return b''.join(pairList[::-1]).decode()
 
-class BitcoinRPC:
+class NYC3RPC:
     def __init__(self, host, port, username, password):
         authpair = "%s:%s" % (username, password)
         authpair = authpair.encode('utf-8')
@@ -64,7 +64,7 @@ class BitcoinRPC:
         return 'error' in resp_obj and resp_obj['error'] is not None
 
 def get_block_hashes(settings, max_blocks_per_call=10000):
-    rpc = BitcoinRPC(settings['host'], settings['port'],
+    rpc = NYC3RPC(settings['host'], settings['port'],
              settings['rpcuser'], settings['rpcpassword'])
 
     height = settings['min_height']