message: Clean up web app build
diff: @@ -25,27 +25,27 @@ rm -rf $OUT_DIR
  mkdir -p $OUT_DIR/ts/server_manager/web_app
  mkdir -p $OUT_DIR/sh/server_manager/web_app
  -pushd $ROOT_DIR/src/server_manager/install_scripts
  +pushd $ROOT_DIR/src/server_manager/install_scripts > /dev/null
  tar --create --gzip -f $OUT_DIR/sh/server_manager/web_app/scripts.tgz *.sh
  -popd
  +popd > /dev/null
  # Node.js on Cygwin doesn't like absolute Unix-style paths.
  # So, we'll use relative paths for a few steps such as Browserify.
  -pushd $ROOT_DIR
  +pushd $ROOT_DIR > /dev/null
  node src/server_manager/install_scripts/build_install_script_ts.node.js \
  build/server_manager/web_app/sh/server_manager/web_app/scripts.tgz > $ROOT_DIR/src/server_manager/install_scripts/do_install_script.ts
  -popd
  +popd > /dev/null
  # Compile Typescript
  tsc
  # Browserify node_modules/ (just a couple of key NPMs) and app.
  -pushd $OUT_DIR
  +pushd $OUT_DIR > /dev/null
  mkdir -p browserified/server_manager/web_app
  $NODE_MODULES_BIN_DIR/browserify --require bytes --require clipboard-polyfill -o browserified/node_modules.js
  $NODE_MODULES_BIN_DIR/browserify js/server_manager/web_app/main.js -s main -o browserified/server_manager/web_app/main.js
  -popd
  +popd > /dev/null
  # Assemble the web app
  readonly STATIC_DIR=$OUT_DIR/static
  