fixed path for missing.png
guess this is better handling
added new icons for streaming
changed icons for streaming
new icons for streaming, 'music', 'sfx' and 'missing'
set icon according to streamtype
TODO distinguish between stream types (audio, video, live) and show overlay icon if a regular avatar is used (see #68)
set icons for 'music' and 'sfx' (fixes #67)
removed unused images, resized video avatar image
removed unused images
added audio for testing
renamed media