from Gunnar Ritter):
* A missing #ifdef HAVE_ICONV caused build errors on platforms without
iconv() support (J.A. Neitzel, Jens Schleusener, Lars Kellogg-Stedman,
Felicia Neff, Chris Pinnock).
* Extraction of parts from header fields with more than 2560 characters
fixed (Lukasz Sznuk, William Cherry).
* Source archive name in nail.spec corrected (Didar Hussain).
* Fixed segmentation violation when encountering multipart header fields
that contain no ':' character (William Cherry).
* Respect the 'allnet' variable when comparing strings in message lists.
* IPv6 support (Jun-ichiro itojun Hagino).
66cc2c431a