fix bug where JSON.generate(["foo"], nil) raises NoMethodError: undefined method "has_key?" for nil:NilClass
fix bug where JSON.generate(["foo"], nil) raises NoMethodError: undefined method "has_key?" for nil:NilClass

brianmario/yajl-ruby,sferik/yajl-ruby,sferik/yajl-ruby,sferik/yajl-ruby,brianmario/yajl-ruby,brianmario/yajl-ruby