Version 0.85 (July 12, 2016)
----------------------------
+ Add support for NAT_IF with fallback to EXT_IF

Version 0.84BETA (July 31, 2015)
--------------------------------
* Use modprobe_multi for newer kernels

Version 0.83BETA (March 9, 2011)
--------------------------------
! Removed Bash-ism

Version 0.82BETA (November 2, 2010)
-----------------------------------
+ Added IPv6 support for matching AH headers
* removed unnecessary EXT_INPUT_CHAIN rule

Version 0.81BETA (September 19, 2010)
----------------------------------
* Changed '-t nat' calls via ip4tables

Version 0.80BETA (August 23, 2009)
----------------------------------
+ Use 'modprobe' wrapper instead of module_probe.

Version 0.71BETA (June 30, 2009)
--------------------------------
* Fixed IFS regression introduced in 0.70BETA.

Version 0.70BETA (June 23, 2009)
--------------------------------
* Added policy support to SPOOF_CHK rule to allow spoofing of local addresses
  on VPN connections (since IPsec address pool might come out of local
  subnet).

Version 0.61BETA (May 1, 2009)
------------------------------
* Corrected some comments

Version 0.60BETA (March 18, 2009)
---------------------------------
+ Support 1.9.0c stop
+ Added back support for IPSEC_VPN_NETS.

Version 0.50BETA (February 26, 2009)
------------------------------------
* Transitioned to use the "policy" module to detect policy being applied to
  IPSec traffic, as well as to detect its state at the various stages (pre-
  and post-encapsulation/decapsulation).
+ Decrepecated the IPSEC_VPN_NETS variable for now, though it might come in
  handy in the future for detecting routing problems and policy mismatches.

Version 0.41BETA (February 14, 2009)
------------------------------------
+ Reintroduced NATting regression with 0.40BETA... sigh.

Version 0.40BETA (February 9, 2009)
-----------------------------------
+ Added ipt_policy module
+ Use -m policy to see if packet is the result of decapsulating an AH or ESP
  packet; if so, don't process it in the EXT_INPUT_CHAIN
+ Fixed NAT issue where packets that were about to be encapsulated got NATted

Version 0.31BETA (August 11, 2008)
----------------------------------
+ Unknown

Version 0.30BETA (July 20, 2008)
--------------------------------
* Renamed plugin to "ipsec-vpn"
+ Added NAT traversal
+ Added OPEN AH UDP port (just in case)

Version 0.25BETA (February 19, 2008)
------------------------------------
* Minor tweak for PLUGIN_RET_VAL

Version 0.24BETA (February 13, 2008)
------------------------------------
+ Updated according to the new plugin template

Version 0.23BETA (January 30, 2008)
-----------------------------------
+ Updated for new config file location / detection

Version 0.22BETA (May 25, 2007)
-------------------------------
+ Added variable sanity check
* Changed some variable names

Version 0.21BETA (January 9, 2006)
----------------------------------
+ Updated for new plugin system (separate conf etc.)
