CLC-3127 - Add paging or *fancy* scrolling to be able to show multiple vignettes on Splash page
https://jira.ets.berkeley.edu/jira/browse/CLC-3127
Merge pull request #2161 from christianv/CLC-3127

CLC-3127 - Add paging or *fancy* scrolling to be able to show multiple v...

I didn't run this in my own sandbox but I did review the code carefully and it looks good.
[CLC-3102] Surface textbooks on instructor views of class pages