recompiled opus for 64bit and added build scripts

BuildScripts/Opus/sync.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+set -e
+
+source config.sh
+
+SCRIPT_DIR=$( (cd -P $(dirname $0) && pwd) )
+DIST_DIR_BASE=${DIST_DIR_BASE:="$SCRIPT_DIR/dist"}
+
+git submodule update --init opus
+cd opus
+git checkout master 
+git pull origin master 
+cd ..
+
+for ARCH in $ARCHS
+do
+    OPUS_DIR=opus-$ARCH
+    echo "Syncing source for $ARCH to directory $OPUS_DIR"
+    rsync opus/ $OPUS_DIR/ --exclude '.*' -a --delete
+done