Fix potential NullReferenceException
Fix potential NullReferenceException

Not calling the default constructor from the overload on line 96 was causing NullReferenceException when calling most of the instance methods.
justcool393/RedditSharp-1,nyanpasudo/RedditSharp,angelotodaro/RedditSharp,epvanhouten/RedditSharp,chuggafan/RedditSharp-1,SirCmpwn/RedditSharp,CrustyJew/RedditSharp,pimanac/RedditSharp,RobThree/RedditSharp,tomnolan95/RedditSharp,Jinivus/RedditSharp,theonlylawislove/RedditSharp,IAmAnubhavSaini/RedditSharp