Add support for horizontal scrolling in 'scrollIntoView' in ui_utils.js
Comments:
Line 56-58: "Gegen den Uhrzeigersinn" is shorter and more common than "Entgegen dem Uhrzeigersinn" (http://de.wikipedia.org/wiki/Drehrichtung)

Line 60-63: "Hand-Werkzeug" is also used in Acrobat

Line 124,133,..: "PDF" is not a noun. Acrobat, Wikipedia use "PDF-Datei" (="PDF file") instead of "PDF".
The English translation sounds just as bad: "An error occurred while loading the PDF.", "The PDF is not fully loaded for printing."
Merge pull request #4018 from fkaelberer/l10nUpdatesDE

Update L10n for DE
Prevent the page number field from having a spinner (spin buttons) in mozilla now that it supports <input type=number>
Merge pull request #4020 from jwatt/master

Prevent the page number field from having a spinner (spin buttons) in mozilla now that mozilla supports <input type=number>
Update viewer.propertiesin l10n for zh-CN
Merge pull request #4024 from lpy/l10n-zh_cn

Update viewer.properties in l10n for zh-CN
Update zh-TW strings again. Pulled from latest mozilla-aurora
Merge pull request #4032 from moztw/1214-zhtw-v2

Update zh-TW again based on latest strings.
Fix typo in viewer.css
Merge pull request #4033 from timvandermeij/typo-fix

Fix typo in viewer.css
Update ja locale
Merge pull request #4037 from Haebaru/master

Update ja locale
[CRX] Add a pageAction to omnibox showing PDF URL

In Chromium extensions, the viewer's URL looks like this:
chrome-extension://oemmndcbldboiebfnladdacbdfmadadm/http://example.com/file.pdf

Furthermore, the PDF Viewer itself can also add something to the reference fragment:
chrome-extension://oemmndcbldboiebfnladdacbdfmadadm/http://example.com/file.pdf#page=2

Consequently, it is difficult to copy a clean URL (e.g. for sharing over mail)
without having to tidy-up the URL manually.

This commit solves this issue by adding a button to the omnibox,
which shows the clean PDF URL on click.
Add unprefixed grab/grabbing cursor

Unprefixed "grab" / "grabbing" values of cursor will land in Firefox 27
 (https://bugzilla.mozilla.org/show_bug.cgi?id=880672)
 (https://github.com/Rob--W/grab-to-pan.js/commit/fda961a3)
Merge pull request #4038 from Rob--W/css-unprefixed-cursor-grab

Add unprefixed "grab" / "grabbing" values for cursor
Correct a typo in `getJavaScript` function expression name.
Fix loading of fonts that are not referenced by an object identifier
Clean up test PDF references
Merge pull request #4040 from EE/api-typo

Correct a typo in `getJavaScript` function expression name.