bump libsoundtouch version in rpm spec file

freeswitch.spec

@@ -118,7 +118,7 @@ Source4:	http://files.freeswitch.org/downloads/libs/libshout-2.2.2.tar.gz
 Source5:	http://files.freeswitch.org/downloads/libs/mpg123-1.13.2.tar.gz
 #Source6:	http://files.freeswitch.org/downloads/libs/openldap-2.4.11.tar.gz
 Source6:	http://files.freeswitch.org/downloads/libs/pocketsphinx-0.7.tar.gz
-Source7:	http://files.freeswitch.org/downloads/libs/soundtouch-1.6.0.tar.gz
+Source7:	http://files.freeswitch.org/downloads/libs/soundtouch-1.7.1.tar.gz
 Source8:	http://files.freeswitch.org/downloads/libs/sphinxbase-0.7.tar.gz
 Source9:	http://files.freeswitch.org/downloads/libs/communicator_semi_6000_20080321.tar.gz
 Source10:	http://files.freeswitch.org/downloads/libs/libmemcached-0.32.tar.gz