[pulseaudio-discuss] pactl improvements

[Maarten Bosmans]

This series superseeds the two patches previously sent to the list.

[PATCH 1/4] pactl: Accept more volume specification formats
This has relative volume adjustments now. I opted for +/- prefix to denote a relative adjustment.

[PATCH 2/4] pactl: Add subcommands to the list command
Roughly the same as the previous patch.

[PATCH 3/4] pactl: Separate stat and info actions
It always seemed weird to me to have these two together. This makes pactl more aligned with cli.

[PATCH 4/4] pactl: Add short output format for list action
Makes e.g. `pactl list sources short` output a tab separated list.  Handy for a quick overview or script processing.  I
haven't really though very hard about which fields to expose, so if anyone has some ideas about what should be different
here, please let yourself be heard before the 1.0 release.

Maarten