Fix asset pipeline by properly including files
Fix bug where PDF does not display in IE 8-10
Add PDF support detection and handling for IE
Implement a 10-second timeout
Eliminate the need to hide and show the document

Converted loading message into a modal overlay, and hide it when
document is loaded. This also fixes a bug in IE8 where showing a
previously hidden iframe with PDF crashes the browser.
Add fancy fade out effect on document load
Fix IE10 bug where the document could remain stuck