Don't respect editor.fontSize: 0

toFloat only falls back to the default when the value is NaN, so an
explicit check for 0 is required.

Fixes microsoft#11715

Explain change to terminal API coming in v1.6

Part of microsoft#11384

Translation input 20160902.01

Translation input 20160826.01

Translation input 20160817.01

update node-debug for translation input

v1.2.1

node-debug: Localization import