Show thumbs when gallery selected from index tab (issue 1363)#1368

demiankatz merged 3 commits intoUniversalViewer:release-4.2.0UniversalViewer/universalviewer:release-4.2.0from

jamesmisson:release-4.2.0-RC2jamesmisson/universalviewer:release-4.2.0-RC2Copy head branch name to clipboard