Removes -moz-box-sizing usage
[B2G] Remove the spinner from the pageNumber field
Clean up toolbar images and add Retina assets.
Move print icons now that all icons are the same size
Faster JPX decoding
Merge pull request #4264 from fkaelberer/FasterJPXdecoding

Faster JPX decoding
Merge pull request #4315 from shorlander/master

Clean up toolbar images and add Retina assets.
Merge pull request #4327 from Snuffleupagus/issue-4315-followup

Move print icons now that all icons are the same size
Merge pull request #4262 from yurydelendik/issue4257

Removes -moz-box-sizing usage
Merge pull request #4328 from Snuffleupagus/b2g-remove-pageNumber-spinner

[B2G] Remove the spinner from the pageNumber field
Improved annotations' display/behavior.

Added an "InteractiveAnnotation" class to homogenize the annotations' structure (highlighting) and user interactions (for now, used for text and link annotations).

Text annotations:
The appearance (AP) has priority over the icon (Name).
The popup extends horizontally (up to a limit) as well as vertically.
Reduced the title's font size.
The annotation's color (C) is used to color the popup's background.
On top of the mouseover show/hide behavior, a click on the icon will lock the annotation open (for mobile purposes). It can be closed with another click on either the icon or the popup.