Mongoose 5.6

Changes in Libmongoose library:

• Added -dav_root configuration option that gives an ability to mount
  a different root directory (not document_root)
• Fixes for build under Win23 and MinGW
• Bugfix: Double dots removal
• Bugfix: final chunked response double-send
• Fixed compilation in 64-bit environments
• Added OS/2 compatibility
• Added getaddrinfo() call and NS_ENABLE_GETADDRINFO
• Various SSL-related fixes
• Added integer overflow protection in iobuf_append() and deliver_websocket_frame()
• Fixed NetBSD build
• Enabled NS_ENABLE_IPV6 build for Visual Studio 2008+
• Enhanced comma detection in parse_header()
• Fixed unchanged memory accesses on ARM
• Added ability to use custom memory allocator through NS_MALLOC, NS_FREE, NS_REALLOC

Changes in Mongoose binary:

• Added -start_browser option to disable automatic browser launch
• Added experimental SSL support. To listen on HTTPS port, use ssl://PORT:SSL_CERT format. For example, to listen on HTTP port 8080 and HTTPS port 8043, use -listening_port 8080,ssl://8043:ssl_cert.pem