Notifications on lockscreen

[jancborchardt]

Notifications on lockscreen only say »notify-send« and »1 new notification« (or rather the number of how many songs there were played).

• There should only be a noification for the current song, so directly show the name and artist in the title.
• »notify-send« is a technical detail

What it should look like is simply:

Song name Artist

With the icon being the album cover.