Prepare for GLib removal.

Replaces g_uri_parse_scheme().

Don't duplicate the buffer just to null-terminate the string.
According to libFLAC API documentation, the string is already
null-terminated.

To replace g_strdup().

Move code from the "mad" plugin.

Move code from the "mad" plugin.

File generated by automake version 1.14.

Fixes broken CUE sheet song tags (regression by commmit 7e8d254b).

This is safer, and works without epoll().  Fixes a build failure with
uClibc, which does not support epoll().

The real and detailed documentation is in the user manual.

Move from doc/mpd.conf.5.

Move from doc/mpd.conf.5.

If the file was recognized by a decoder plugin, accept it - don't
require metadata.