Add or later verbage to LICENSING and sync header license versions

LICENSING

@@ -1,7 +1,10 @@
 
 wolfSSL (formerly known as CyaSSL) and wolfCrypt are either licensed for use
-under the GPLv2 or a standard commercial license. For our users who cannot use
-wolfSSL under GPLv2, a commercial license to wolfSSL and wolfCrypt is available.
+under the GPLv2 (or at your option any later version) or a standard commercial
+license. For our users who cannot use wolfSSL under GPLv2
+(or any later version), a commercial license to wolfSSL and wolfCrypt is
+available.
+
 Please contact wolfSSL Inc. directly at:
 
 Email: licensing@wolfssl.com

wolfcrypt/src/cryptocb.c

@@ -6,7 +6,7 @@
  *
  * wolfSSL is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * wolfSSL is distributed in the hope that it will be useful,

wolfcrypt/src/wc_pkcs11.c

@@ -6,7 +6,7 @@
  *
  * wolfSSL is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * wolfSSL is distributed in the hope that it will be useful,

wolfssl/wolfcrypt/cryptocb.h

@@ -6,7 +6,7 @@
  *
  * wolfSSL is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * wolfSSL is distributed in the hope that it will be useful,

wolfssl/wolfcrypt/pkcs11.h

@@ -6,7 +6,7 @@
  *
  * wolfSSL is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * wolfSSL is distributed in the hope that it will be useful,

wolfssl/wolfcrypt/wc_pkcs11.h

@@ -6,7 +6,7 @@
  *
  * wolfSSL is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * wolfSSL is distributed in the hope that it will be useful,