Version 0.8.1

This release attempts to fix some of the outstanding build issues on Windows with MSVC and resolve some old issues and PR commits.

• Cherry picked most of the non-TLS commits in PR #17
  • Connector timeouts
  • Stateless reads & writes for streaming sockets w/ functions returning ioresult
  • Some small bug fixes
  • No shutdown on invalid sockets
• #38 Made system libs public for static builds to fix Windows
• #73 Clone a datagram (UDP) socket
• #74 Added <sys/time.h> to properly get timeval in *nix builds.
• #56 handling unix paths with maximum length (no NUL term)
• Fixed outstanding build warnings on Windows when using MSVC