Add 4 file types for htmlembedded mode - close #1883
Add 4 file types for htmlembedded mode - close #1883

rundis/LightTable,sbauer322/LightTable,sbauer322/LightTable,sbauer322/LightTable,kenny-evitt/LightTable,rundis/LightTable,bruno-oliveira/LightTable,LightTable/LightTable,Bost/LightTable,LightTable/LightTable,bruno-oliveira/LightTable,rundis/LightTable,LightTable/LightTable,Bost/LightTable,kenny-evitt/LightTable,Bost/LightTable,kenny-evitt/LightTable,bruno-oliveira/LightTable