[Trivial] Update license year range to 2018

COPYING

@@ -1,7 +1,7 @@
 The MIT License (MIT)
 
-Copyright (c) 2009-2017 The Bitcoin Core developers
-Copyright (c) 2009-2017 Bitcoin Developers
+Copyright (c) 2009-2018 The Bitcoin Core developers
+Copyright (c) 2009-2018 Bitcoin Developers
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

configure.ac

@@ -5,7 +5,7 @@ define(_CLIENT_VERSION_MINOR, 15)
 define(_CLIENT_VERSION_REVISION, 99)
 define(_CLIENT_VERSION_BUILD, 0)
 define(_CLIENT_VERSION_IS_RELEASE, false)
-define(_COPYRIGHT_YEAR, 2017)
+define(_COPYRIGHT_YEAR, 2018)
 define(_COPYRIGHT_HOLDERS,[The %s developers])
 define(_COPYRIGHT_HOLDERS_SUBSTITUTION,[[Bitcoin Core]])
 AC_INIT([Bitcoin Core],[_CLIENT_VERSION_MAJOR._CLIENT_VERSION_MINOR._CLIENT_VERSION_REVISION],[https://github.com/bitcoin/bitcoin/issues],[bitcoin],[https://bitcoincore.org/])
@@ -164,7 +164,7 @@ AC_ARG_ENABLE([lcov],
   [enable lcov testing (default is no)])],
   [use_lcov=$enableval],
   [use_lcov=no])
-  
+
 AC_ARG_ENABLE([lcov-branch-coverage],
   [AS_HELP_STRING([--enable-lcov-branch-coverage],
   [enable lcov testing branch coverage (default is no)])],
@@ -1313,7 +1313,7 @@ case ${OS} in
    ;;
 esac
 
-echo 
+echo
 echo "Options used to compile and link:"
 echo "  with wallet   = $enable_wallet"
 echo "  with gui / qt = $bitcoin_enable_qt"
@@ -1328,7 +1328,7 @@ echo "  with upnp     = $use_upnp"
 echo "  use asm       = $use_asm"
 echo "  debug enabled = $enable_debug"
 echo "  werror        = $enable_werror"
-echo 
+echo
 echo "  target os     = $TARGET_OS"
 echo "  build os      = $BUILD_OS"
 echo
@@ -1339,4 +1339,4 @@ echo "  CXX           = $CXX"
 echo "  CXXFLAGS      = $CXXFLAGS"
 echo "  LDFLAGS       = $LDFLAGS"
 echo "  ARFLAGS       = $ARFLAGS"
-echo 
+echo

contrib/debian/copyright

@@ -5,7 +5,7 @@ Upstream-Contact: Satoshi Nakamoto <satoshin@gmx.com>
 Source: https://github.com/bitcoin/bitcoin
 
 Files: *
-Copyright: 2009-2017, Bitcoin Core Developers
+Copyright: 2009-2018, Bitcoin Core Developers
 License: Expat
 Comment: The Bitcoin Core Developers encompasses the current developers listed on bitcoin.org,
          as well as the numerous contributors to the project.