Ghost User requested to merge fb-image_display_fix into master Nov 18, 2019

Related

https://gitlab.uni-koblenz.de/robbie/homer/issues/280

Description

Fixed the display of images on the RobotFace display.

Changes

ImageDisplay no longer paints image in a loop
TalkingHead no longer overlays whilst image should be displayed
TalkingHead resets to previous framerate after image is shown
TalkingHead no longer overrides some QT render functions