!!Fix: destination IP may be not checked against ACL

+ IPv6 support

• back connect support
• name resolution over TCP, parent proxy support for dnspr
  ! multiple race conditions fixed
  ! reduced memory usage
  ! Generate Forwarded: header instead of X-Forwarded-For:
  ! Default name resolution is non-blocking in *nix
  Read HowTo for new functionality description
  Update from 0.7 is recommended if you use 3proxy under high load

+ IPv6 support

• Connect back (reverse connect) proxy
• DNS requests redirection via parent proxy over TCP (including UDP->TCP mapping)
• SSLPlugin for TLS/SSL traffic decryption

• multiple race conditions fixed on configuration reload

! traffic displayed incorrectly
! archiver doesn't add suffix if logname contains macro
! fix potential race condition on configuration reload
! fix FTP over HTTP authentication

Request / header size limitation relaxed for HTTP proxy

Linux compilation issues resolved

Minor improvements and bugfixes:

• + Windows icons added
• + Warnings added for most common misconfigurations
• + ftppr NLSD command supported
• ! Ignore NTLM handshake if NTLM is not enabled
• ! memcpy replaced with memmove for overlapped region**
• ! better EINTR handling on *nix
• ! FTP proxy debugging output removed (introduced in 0.7), binding for data connection corrected
• ! memory leak fixed in ldapauth plugin

** this one is important, because it can lead to HTTP proxy problems on some platform, notably few Ubuntu amd64 releases.

This release is partially forced: while no new significant functions are
added, 0.7 is code is much more stable and less buggy than 0.6. Since
there is no new development for a long time, except few minor bugfixes,
I decided to finally release 0.7. You may want it if you:

1. Use HTTP proxy
2. Use 3proxy under *BSD/Mac OS X/iPhone OS
3. Use plugins, specially traffic related ones, like PCRE.

I have no time for active developement. There are interesting features
in nearly ready state, e.g. SSL support / SSL decryption via
certificates spoofing, NAT support and SSL auto-detection. You can step
into development, if you are interested.

There are some configuration changes:

1. auth iponly is now default (because most misconfigurations were
   because of default auth none)
2. maxconn is now 500 by default (because WebKit browsers ignore
   standards and create a lot of connections even if proxy is configured)
3. NTLM is disabled by default (-n options, -n1 to enable) because
   NTLMv1 is disabled by default in Windows since Vista and there is no
   NTLMv2 library with compatible license. Report me, if any.