Fix a bug where we never returned a reference to WinJS through AMD.
Fix a bug where we never returned a reference to WinJS through AMD.

ladyinblack/winjs,edrohler/winjs,KevinTCoughlin/winjs,rigdern/winjs,GREYFOXRGR/winjs,edrohler/winjs,Guadzilah/winjs,GREYFOXRGR/winjs,IveWong/winjs,gautamsi/winjs,Guadzilah/winjs,nobuoka/winjs,GREYFOXRGR/winjs,CensoredUser/winjs,IveWong/winjs,CensoredUser/winjs,grork/winjs,KevinTCoughlin/winjs,ladyinblack/winjs,kevinwsbr/winjs,IveWong/winjs,jmptrader/winjs,rigdern/winjs,nobuoka/winjs,jmptrader/winjs,KevinTCoughlin/winjs,PaulWells/winjs,gautamsi/winjs,nobuoka/winjs,grork/winjs,grork/winjs,rigdern/winjs,jmptrader/winjs,PaulWells/winjs,edrohler/winjs,ladyinblack/winjs,PaulWells/winjs,gautamsi/winjs,kevinwsbr/winjs,CensoredUser/winjs,Guadzilah/winjs,kevinwsbr/winjs