widgets.js.common: Allow use of black icon image
widgets.js.common: Show plural count msg on init
widgets: Add widget 3, black horizontal
widgets: Add widget 4, white horizontal share-link
widgets: Add widget 5, test horizontal share-link
widgets.js.common: Fix singular value check
widgets: Fix numbering in file headers
js: Do not show trailing 0s in #.##X formats
js: Remove unnecessary check in digits for short fmt
widgets.css.common: fade transition .8s -> .5s
widgets: Add buttons and widget 6 (same as 5 but with buttons on hover)