remove _isScreen.
remove _isScreen.

eush77/blessed,rstr74/blessed,gdseller/blessed,anko/blessed,chjj/blessed,yaronn/blessed,umi/blessed,piranna/blessed,umi/blessed,mcanthony/blessed,dbkaplun/blessed,bulkan/blessed,piranna/blessed,chjj/blessed,zBMNForks/blessed,eush77/blessed,mcanthony/blessed,bulkan/blessed,zBMNForks/blessed,rosshinkley/blessed,gdseller/blessed,rosshinkley/blessed,rstr74/blessed,yaronn/blessed,anko/blessed,dbkaplun/blessed