Updated dlib to 18.5
Backported changes to the http server from 17 to 18.
Version 1.3 with rolling logging file. Fixed size or daily log file rollover.
Initial IPV6 support for *NIX systems. Will port to windows next.
Added ability to set the server IP address for listening to support IPV6, can also listen to only one address.
Simplified IPV6 handling and fixed accept.
Windows porting.
Fixed bug in connector test when porting to Windows.
First cut supporting Windows IPV6.
Made connector test thread virtual.
Cleaned up IPV6 implementation and ported to windows. Allow for pre-vista IPV4 only.
Added WINVER variable to CMake for Windows builds. Defaults to Windows XP 0x501. Changed the test to only build and run for IPV6 if the project was built for IPV6. To build with IPV6, change WINVER to 0x0600 (VISTA) and regenerated using CMake.