Feature #15 - Use custom useragent

Now uses the user-agent "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36" which is is pretty common user-agent.

Yet again there are a few longer lines which JSHint doesn't like but I'll clean those up later (sorry to the elite coders).