Initial work on downsampling

The http connection is being closed before sending all data. May have something to do with the Range header

conf/app.conf

@@ -12,7 +12,8 @@ indexGroups=A B C D E F G H I J K L M N O P Q R S T U V W X-Z(XYZ)
 musicFolder=./iTunes1.xml
 user=deluan
 password=wordpass
-dbPath = ./devDb
+dbPath=./devDb
+downsampleCommand=ffmpeg -i %s -map 0:0 -b:a %bk -v 0 -f mp3 -
 
 [dev]
 disableValidation = true
@@ -25,3 +26,4 @@ user=deluan
 password=wordpass
 dbPath = /tmp/testDb
 musicFolder=./tests/itunes-library.xml
+downsampleCommand=ffmpeg -i %s -b:a %bk mp3 -