--- 1.3 (2014-09-14)
! Updates related to the new SPF RFC, RFC 7208
- Added new config option, Lookup_Time, to adjust SPF record timeout limit
(default 20 seconds per RFC 7208) Requires at least pyspf 2.0.7
- Added new config option, Void_Limit, to enable the new void lookup limit
instroduced in RFC 7208 to be adjusted - Default is 2 as recommended in
RFC 7208, section 4.6.4. Has no effect on pyspf before 2.0.9.
- Updated documentation to refer to RFC 7208 (and RFC 7001 for
authentication results)
- Updated descriptions in documentation to describe spec compliance
relative to RFC 7208 instead of RFC 4408
* Guard against crashes when forming header field contents if the receiver
is somehow missing