Otherwise, we end up propagating those dependencies into targets that
link against that library, which creates unnecessary link-time
dependencies.
Also included are changes to readd now missing dependencies to tools
that actually need them.
The audio applet uses the user configuration file "AudioApplet.ini" to
persist its settings, currently only whether the audio percentage should
be shown.
Since the audio server now may have specific settings when it starts,
the audio applet respects them by reading these same settings once when
it starts. Therefore, the audio server settings are not immediately
overridden by the audio applet defaults, as was the case before this
change.
A minor change was done to the way that the audio volume is calculated;
doubles are now used.
