adding default local stream just in case

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@13376 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/autoload_configs/local_stream.conf.xml

 <configuration name="local_stream.conf" description="stream files from local dir">
+  <!-- fallback to default if requested moh class isn't found -->
+  <directory name="default" path="$${base_dir}/sounds/music/8000">
+    <param name="rate" value="8000"/>
+    <param name="shuffle" value="true"/>
+    <param name="channels" value="1"/>
+    <param name="interval" value="20"/>
+    <param name="timer-name" value="soft"/>
+  </directory>
+
   <directory name="moh/8000" path="$${base_dir}/sounds/music/8000">
     <param name="rate" value="8000"/>
     <param name="shuffle" value="true"/>