v1.6.1

(same as v1.6.0, but needed re-publishing to npm)

• avoid misleading CORS error message
• add 'progress' event on file/form upload in Node (Olivier Lalonde)
• return raw response if the response parsing fails (Rei Colina)
• parse content-types ending with +json as JSON (Eiryyy)
• fix to avoid throwing errors on aborted requests (gjurgens)
• retain cookies on redirect when hosts match (Tom Conroy)
• add Bower manifest (Johnny Freeman)
• upgrade to latest cookiejar (Andy Burke)