Make instance of Swifter in iOS demo non-optional
Make instance of Swifter in iOS demo non-optional

Paludis/Swifter,babyboy18/swift_code,adarwash2012/Swifter,cjwirth/Swifter,cjwirth/Swifter,ibru/Swifter,siuying/Swifter,mattiabugossi/Swifter,s-aska/Swifter,SteveClement/Swifter,gecko655/Swifter,brandons/Swifter,Gurpartap/Swifter,mattdonnelly/Swifter,kristenm6/Swifter,oktapodi/Swifter,mattdonnelly/Swifter,simorgh3196/Swifter,harlanhaskins/Swifter-1,brandons/Swifter,harlanhaskins/Swifter-1