Re #444: If Bing Marketplace quota exceeded, wait 24 hours before trying again.
Re: #450 - BUG: pdfs not displaying

* updated to the latest version of pdf.js
Re: #450 - BUG: pdfs not displaying

* added quotes to background urls
Re: #450 - BUG: pdfs not displaying

* removed line break from data image
Re: #450 - BUG: pdfs not displaying

* adjusting the path to the worker.js file
Re: #450 - BUG: pdfs not displaying

* adjusted the pdf worker path
Re: #450 - BUG: pdfs not displaying

* added pipeline asset file
Re: #450 - BUG: pdfs not displaying

* added pdf.worker.js to the asset pipeline precompile