Merge pull request #41 from vixus0/mpv-readme

Updated mpv arguments in README.rst
Merge pull request #42 from vixus0/xdg-config-dir

Moved configuration files to %XDG_CONFIG_HOME% on Unix and %APPDATA% on Windows
Handle .config dir doesn't exist
update playerargs for mpv
fix display on open/save playlist
Merge branch 'ddir-no-glib' of https://github.com/vixus0/pms into vixus0
strip newline char
utf8 decode ddir
Bump version number
Rebranding
changed filename
Rebranding
Add renaming information
pms displayes a message about new name
Change version to 0.20.00, remove pms file
Change pip instructions for new name
Add renamed message
use env var to enable debugging
Migrate config and playlist files to mps dir
Bump version number to 0.20.01