Fix AltGr on Windows Chrome/IE

Characters requiring AltGr (e.g. left square bracket = AltGr+8) on Finnish keyboard don't work at all in IE 11 or Chrome 36 when running on Windows 7 (and probably Windows 8, too).

This is due to a bug in jq-console: https://github.com/replit/jq-console/issues/64, pull request here: https://github.com/replit/jq-console/pull/65

But I don't know if/when jq-console's author plans to merge it and ship a new version. Meanwhile, we could point Bower directly to the version from the above-mentioned pull request.