message: Fix Opus download URL
diff: @@ -81,7 +81,7 @@ install_apt_deps(){
  sudo apt-get install -qq software-properties-common -y
  sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
  sudo apt-get update -y
  - sudo apt-get install -qq git make gcc-5 g++-5 python3-pip libssl-dev cmake pkg-config liblog4cxx10-dev rabbitmq-server mongodb curl -y
  + sudo apt-get install -qq git make gcc-5 g++-5 python3-pip libssl-dev cmake pkg-config liblog4cxx10-dev rabbitmq-server mongodb curl autoconf libtool automake -y
  sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 60 --slave /usr/bin/g++ g++ /usr/bin/g++-5
  sudo chown -R `whoami` ~/.npm ~/tmp/ || true
  @@ -129,9 +129,10 @@ install_opus(){
  [ -d $LIB_DIR ] || mkdir -p $LIB_DIR
  cd $LIB_DIR
  if [ ! -f ./opus-1.1.tar.gz ]; then
  - curl -OL http://downloads.xiph.org/releases/opus/opus-1.1.tar.gz
  + curl -L https://github.com/xiph/opus/archive/v1.1.tar.gz -o opus-1.1.tar.gz
  tar -zxvf opus-1.1.tar.gz
  cd opus-1.1
  + ./autogen.sh
  ./configure --prefix=$PREFIX_DIR
  make $FAST_MAKE -s V=0
  make install
  