Fix no scrobbling due to missing metadata

metadata may be missing in some cases. Default values for these properties are:

• albumArtist: same as artist

• url: "/"

• other properties:

  based on variable type:

  • string: ""
  • int: 1
  • list: []

Add config option for scrobble time threshold

For upgrading, you may need to add new lines to the config file for the new option scrobble_time_threshold. See the updated config.yaml.example for more info

Fix known music title issue

v1.0.1

update README

Add scrobble cache support

v1.0.0

add cache support

First stand-alone binary build

v0.3.0

fix:module not found