fix library for libnfc version 1.8.0

CHANGES

@@ -63,3 +63,9 @@ Release 2.1.1 (2020-05-22)
 
 Release 2.1.2 (2020-05-22)
  I Fix Go import paths (sorry, this is my first time using go mod)
+
+Release 2.1.3 (2020-05-22)
+ I In reaction to the newly released libnfc 1.8.0 which fixes the ABI
+   breakage, revert the enumeration order changes and retract releases
+   2.1.0 to 2.1.2.
+ N Requires libnfc version >= 1.8.0.

README

@@ -2,8 +2,11 @@ This is a Go wrapper for the libnfc.
 
 You need the following libnfc version to use this code:
 
-    versions <= 2.0.2 need libnfc version 1.7.0
-    version  >= 2.1.0 need libnfc version 1.7.2 or later
+    versions <= 2.0.2 need libnfc version 1.7.0 or 1.7.1
+    version  >= 2.1.0 need libnfc version 1.8.0 or later
+
+Due to an unfortunate ABI breakage, libnfc version 1.7.2 cannot be used
+with this wrapper.
 
 The code has not been thoroughly tested yet. Please report any errors to
 the project. The API is considered stable as of version 2.0 and will
@@ -15,14 +18,14 @@ scheme for their versioning involving the 2.0 and latest directories.
 These can safely be ignored for new developments.  Using Go modules,
 only version 2.1.0 and later are available.
 
-To use this library, install libnfc version 1.7.2 or newer and import
+To use this library, install libnfc version 1.8.0 or newer and import
 
     github.com/fuzxxl/nfc/v2
 
 into your project.  This project uses go modules for versionning and
 tries its best to follow the usual guidelines for interface stability.
 
-Copyright (c) 2014, 2015, 2020 Robert Clausecker <[email protected]>
+Copyright (c) 2014--2020 Robert Clausecker <[email protected]>
 
 This program is free software: you can redistribute it and/or modify it
 under the terms of the GNU Lesser General Public License as published by

v2/nfc.go

@@ -118,13 +118,13 @@ const (
 const (
 	ISO14443a = iota + 1
 	Jewel
-	Barcode // Thinfilm NFC Barcode
 	ISO14443b
 	ISO14443bi   // pre-ISO14443B aka ISO/IEC 14443 B' or Type B'
 	ISO14443b2sr // ISO14443-2B ST SRx
 	ISO14443b2ct // ISO14443-2B ASK CTx
 	Felica
 	DEP
+	Barcode         // Thinfilm NFC Barcode
 	ISO14443biClass // HID iClass 14443B mode
 )