Removing curly quotes from filepath when rewriting music.
Update music install script to add replaygain.
Add id3 script to display id3 tags of a mp3
Add replaygain script to add and remove replaygain tags.
Swapped vcd and vfd aliases.
Apply replaygain when updating metadata.
Rewriting metadata keeps replaygain TXXX values.
 `replaygain` output update.
Add rg alias for replaygain.