Changes in PT translation

- Small change in pt-PT (hope that's correct)
- Add pt_BR
Merge pull request #8 from r-gaia-cs/pt

Changes in PT translation
Merge pull request #7 from khaledhosny/master

Arabic translation
Update from TeXZilla: new API to set the DOMParser.
Add a reference to the TeXZilla add-on.
Add Hungarian translation. Thanks to storageer!
Add zh-CN locale for mathml-copy

Fix Issue #1 partially
Merge pull request #11 from huxuan/master

Add zh-CN locale for mathml-copy
Upgrade to TeXZilla 0.9.4
Marathi Translation
Merge pull request #12 from djaniketster/patch-1

Marathi Translation
Hindi Translation

Signed-off-by: Ashish Namdev <ashish28.sirt@gmail.com>
Merge pull request #13 from AshishNamdev/master

Hindi Translation for mathml-copy/locale
increase version number
Small fixes for version 0.9.5 of the add-on.

- use oninput to track user changes (requested in previous review feedback).
- display red TeX source to indicate a parsing error.
- enlarge the textarea and remove the inital blank inside it.
- remove the semi-column between fields.
- use a 32x32 PNG image instead of the SVG+MathML one.
MathJax Native MathML: remove all the width-related hacks and forced reflow for Gecko >= 29.
bump version number
Improvements to the MathJax Native MathML add-on:

- split the page script into one that modifies the menu cookie and one that fixes MathJax bugs
- do not try to insert the script if the document.head is undefined
- add add-on icons
- add localized preference options
- by default, prevent MathJax from overriding the browser UI (zoom trigger and context menu)
MathJax Native MathML: new option to disable mml2jax preprocessor. This will speed up the rendering of pages that already contains MathML in their source code.
Fix errors in previous commit