Merge pull request #24 from ToadKing/master

Named Pipes support
Fix Python 3 error and invalid import.
Use unique pipe name and fix pipe blocking on open on *nix.
Move the named pipe stuff to a file-like class.
No need to close *nix fifo, just remove it.
Release version 1.3.
Fix small error in README.
Split stream.py.
Fix missing imports from last commit.
Add support for Apple HLS streams.
Fix broken plugins.onegamenet.
Add .stream to packages list.
Update README.
Fix file check on Python 3.
Handle empty lines in livestreamerrc.
Add tools to build standalone Windows version and installer.
Release version 1.3.1.
Update README.

New installer for Windows is now available.
cli: Add option to load plugins from custom directories.
Improve quality weighting.