Rebased patches.

Ran init script through shellcheck.

Several Makefile cleanups.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

.. because it's confusing and doesn't seem to add any value.

The "auto configuration" looks for installed codec libraries and tells
squeezelite (through command line arguments) to exclude codec support if a
required library is missing.

If you have installed squeezelite-full, then all required codec libraries
are automatically installed as dependencies and the squeezelite binary won't
even run if there are missing libraries - ie the "auto configuration" will
always find all codecs and never disable any codecs. Toggling "auto
configuration" makes no difference and the setting is just confusing.

If you install squeezelite-mini the "auto configuration" can work, but
library checks are already done by dlopen() calls in squeezelite and codecs
are disabled if the necessary libraries are not found - ie the "auto
configuration" duplicates the library checks of squeezelite itself.

Signed-off-by: Robert Högberg <robert.hogberg@gmail.com>

Signed-off-by: Ted Hess <thess@kitschensync.net>

Signed-off-by: Ted Hess <thess@kitschensync.net>

allow dynamic linking to either vorbisifile or vorbisidec

Signed-off-by: Ted Hess <thess@kitschensync.net>

Signed-off-by: Ted Hess <thess@kitschensync.net>