hit a wall trying to install io.js
I went to iojs.org, clicked on "Download for Linux", got iojs-v3.0.0-linux-x64.tar.xz, unpacked it, opened the README.md. So far, so good. The build instructions for Unix are the usual "./configure; make; make install", which would be fine, except that the download's top-level directory doesn't have a 'configure' script or 'Makefile'. I don't know how to make sense of this.