Captions, image grid, article date

• Image captions not forced to be italic ( based on accessibility of image gallery )
• Image grid uses semantic figure and figcaption tags
• Article hero has an option to display the date outside of attribution area

Fixed link color in Feature with Large Image text

Merge pull request #6 from iastate/develop

Fix link color in Feature with Large Image

Site Header Utility Button Fix

Re-adjusting the site header utility button arrow alignment

Nimbus Sans Removal

Nimbus Sans font was not renewed.