slideshow's nav broken in dojox gallery

[jer]

\dojox\image\resources\Gallery.css text-align property pushes slideshow's play button to the right so it overlaps next button

.imageGalleryWrapper {
	padding-bottom: 20px;
	text-align: center;
}

suggestion: \dojox\image\resources\SlideShow?.css may be remove absolute positioning and add float:left?

.slideShowCtrlPlay {
	background-position:-190px 0;
	position:absolute;
}

[Shane O'Sullivan]

Cannot replicate this exact issue, but the nav in Slideshow breaks if a a slideshow is instantiated in a non-visible Pane

[Shane O'Sullivan]

(In [24458]) Refs #10502 Fixes the SlideShow? nav buttons when in a hidden pane