can't build on linux

[calvinmetcalf]

get a 403 when trying to download https://atom.io/download/atom-shell/v0.25.1/iojs-v0.25.1.tar.gz

[ungoldman]

@calvinmetcalf lmk if this is relevant to your probs at all: #5 (comment)

[mafintosh]

@sorribas joined earlier using ubuntu so it works sometimes at least

[calvinmetcalf]

yeah I got on by using nvm to switch to node 0.12 which downloaded it from the correct url (https://atom.io/download/atom-shell/v0.25.1/node-v0.25.1.tar.gz) and then switching back to iojs