Fixed Ternary boolean coercion. Closes #420
Fixed Ternary boolean coercion. Closes #420

this commit makes ?: behave more like javascript,
where a list with falsey values results in false

yetone/stylus,modulexcite/stylus,HossainKhademian/Stylus,peterkinalex/stylus-1,Ricardh522/stylus,jonpacker/stylus,darwin/stylus,galenvagen/stylus,silvaemota/stylus,rstacruz/stylus,jangarcia/stylus,ThiagoGarciaAlves/stylus,trixter5/stylus,stylus/stylus,jameswomack/stylus,angryrobot/stylus,Panya/stylus,Delapouite/stylus,tyv/stylus,a-x-/stylus,behzad88/stylus,meteor/stylus,isaacs/stylus,baotingfang/stylus,PeterWangPo/stylus,johnnycopperstone/stylus,SimenB/stylus,Zagorakiss/stylus,cemoulto/stylus