* src/base/ftbitmap.c (FT_Bitmap_Embolden): Fix emboldening bitmap of mode FT_PIXEL_MODE_GRAY. Also add support for mode FT_PIXEL_MODE_LCD and FT_PIXEL_MODE_LCD_V. (ft_bitmap_assure_buffer): FT_PIXEL_MODE_LCD and FT_PIXEL_MODE_LCD_V should have ppb (pixel per byte) 1. Zero the padding when there's no need to allocate memory. * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Handle slot->advance too. More suited emboldening strength.