Access Number attribute through getValueCI.  Also, changed the location where getValueCI gets assigned to the attribute object for all content layers -- pulled it out of buildLayer.
Access Number attribute through getValueCI.  Also, changed the location where getValueCI gets assigned to the attribute object for all content layers -- pulled it out of buildLayer.

pmacMaps/shortlist-storytelling-template-js,anarosner/storymap-shortlist-case-studies,regan-sarwas/shortlist-storytelling-template-js,regan-sarwas/shortlist-storytelling-template-js,Esri/shortlist-storytelling-template-js,coreybaker/FoundationApp,pmacMaps/shortlist-storytelling-template-js,Esri/shortlist-storytelling-template-js,anarosner/storymap-shortlist-case-studies