Merge branch 'vui-cleanup' into 'master'

cfg/sei_vui/alternative_transfer_characteristics.cfg

cfg/sei_vui/ambient_viewing_environment.cfg

cfg/sei_vui/content_colour_volume.cfg

cfg/sei_vui/content_light_level.cfg

cfg/sei_vui/equirectangular.cfg

cfg/sei_vui/film_grain_characterstics.cfg

cfg/sei_vui/frame_packing.cfg

cfg/sei_vui/generalized_cubemap_projection.cfg

cfg/sei_vui/mastering_display_colour_volume.cfg

cfg/sei_vui/omni_viewport.cfg

cfg/sei_vui/region_wise_packing.cfg

cfg/sei_vui/sample_aspect_ratio.cfg

cfg/sei_vui/sphere_rotation.cfg

cfg/sei_vui/subpicture_level.cfg

cfg/sei_vui/timing.cfg

cfg/sei_vui/vui_HD.cfg

cfg/sei_vui/vui_UHD_PQ.cfg

doc/software-manual.tex

source/App/EncoderApp/EncApp.cpp

source/App/EncoderApp/EncAppCfg.cpp