added endless loop mode for scrollable container, used by the multi game
image area.
Merge branch 'unstable' into multiple-images
New component for auto scrolling image list
Revert "added endless loop mode for scrollable container, used by the multi game"

Modification to ScrollableContainer no longer needed, as game images are
now looped in a different container.

This reverts commit 8386aa42b1c24813c0908d8d26b511d7327fef36.

Conflicts:
	src/components/GuiGameList.cpp
Merge branch 'unstable' into multiple-images