FLUID-4997: Fixed a hanging bracket in UIOptions.css. Added new icon fonts for uploader and added tick, remove, and add icons to the CSS.

Need to work on converting the images for the error messages to icon font. Modified DemoUploadManager.js to always return an error (even on success) so we can do the styling properly. This will be removed on final commit.
FLUID-4997: Added icon font replacements for error messages. Still to do: dimmed browse button.
FLUID-4997: Tweaked icon sizing and positioning. Added icons for error messages. Changed the warning icon so it would render properly on Firefox.
FLUID-4997: Added IE8 fix, font now shows up properly.
Merge branch 'trunk' into FLUID-4997
FLUID-4997: Removed speak: none from the CSS>
FLUID-4997: Removed !important from the icon font specification.
FLUID-4997: Changed the way errors appear when an error occurs during upload. Removed some unused error styles since upload errors are no longer rendered in a separate TR element.
FLUID-4997: Removed unused error styling. Changed name of "renderErrorInfoRow*" to "renderErrorInfo*" (removed the word "Row" from identifiers).
Merge remote-tracking branch 'jon/FLUID-4997'

* jon/FLUID-4997:
  FLUID-4997: Removed unused error styling. Changed name of "renderErrorInfoRow*" to "renderErrorInfo*" (removed the word "Row" from identifiers).
  FLUID-4997: Changed the way errors appear when an error occurs during upload. Removed some unused error styles since upload errors are no longer rendered in a separate TR element.
  FLUID-4997: Removed !important from the icon font specification.
  FLUID-4997: Removed speak: none from the CSS>
  FLUID-4997: Added IE8 fix, font now shows up properly.
  FLUID-4997: Tweaked icon sizing and positioning. Added icons for error messages. Changed the warning icon so it would render properly on Firefox.
  FLUID-4997: Added icon font replacements for error messages. Still to do: dimmed browse button.
  FLUID-4997: Fixed a hanging bracket in UIOptions.css. Added new icon fonts for uploader and added tick, remove, and add icons to the CSS.