Microsoft has announced that the Lumia 535 is now available in the UK. The mid-range phone runs Windows Phone 8.1, and sports a 5" 960x540 display, a 1.2ghz quadcore Qualcomm Snapdragon 200 processor, 8GB of storage - as well as a 5MP rear and 5MP front-facing camera. Here's how Microsoft's press release describes some of…