stream language.

free).
Removed useless memset after calloc.

This closes #1657. We have to use the same frequency as the RTP stream
output, otherwise, it's not going to work...

That fixes compilation when incompatible headers are installed on the system (such as headers from vlc 0.8.6)

- liboil bump
- libschroedinger bump (remove unneeded patches)
- libmp3lame (new patch added)

If (a < 0 || b < 0) is false, then (a >= 0 && b >= 0) is true,
which implies (a >= || b >= 0) is true as well.
And this was tagged as a FALSE positive!?!

play/stop/etc. buttons don't jump around when album art size changes.

For the same reason as audio outputs. The code was thread-unsafe beyond
repair.

This reverts commit 74cf34e6.

This fixes #1651. We can hopefully get a proper patch for the FS
controller.