map: Update device list with upstream BrowserStack
map: Update device list with upstream BrowserStack

Follows-up c983cfc. While this is still version 3, a few new
devices got added. And a few existing ones got renamed.

Taken from http://api.browserstack.com/3/browsers?flat=true

> browsers.forEach(function(browser) {
>     devices[browser.device] = 1;
> });
> Object.keys(devices);

Filtered down to only iPad/iPhone-ish ones and replaced existing
ones with those.

mzgol/testswarm-browserstack,clarkbox/testswarm-browserstack,mzgol/testswarm-browserstack,clarkbox/testswarm-browserstack