Grab-bag

*Tool tips for collection box table headers
*Decreased waveform width
*Added links to welcome and transcript complete mailers
*Add pay-as-you-go to pricing page, plus copy tweaks and link to full
FAQ
*Added more pictures, descriptions, header and well for featured
explore page content
*About page CTA button border fix, copy tweak
*Enterprise page button text formatting (was too small)
*Link to Zendesk in general FAQ
*Alert in upload form not to upload with periods in filenames
*FAQ typo fixes, added language question
Merge branch 'pr/841'

Conflicts:
	app/assets/html/plans/_plans.html.slim
tweek error msgs in http file get to more easily distinguish the internal methods; turn off SSL verify to workaround cert problems
body background switch to white
fix border for search page search input box now that background is white
removed some images and carousel js
Merge branch 'master' of https://github.com/popuparchive/pop-up-archive
only re-route on error if the window.location matches the xhr api call (fix regression introduced in 43ed54ac8f5747089f01bc94bccc3751b15778fd)
Item show restructure
expand description
move storage location next to title
Expand scrubber width
align breadcrumbs and item-level buttons
Align file-level buttons with file title
Adjust transcript button spacing
Align Amara buttons and transcript
Hella comments on item page
Hide embed code for public items
Move key commands below buttons
Simplify key commands css