Merge pull request #7 from mubaidr/master

Add chrome/opera manifests
Changed instances of Plug-in to Add-on
Merge pull request #11 from kylehuff/description_changes

Changed instances of Plug-in to Add-on
Opera Prestio Version Completed

I've configured this addon for earlier versions of Opera which is based
on Prestio rendering engine. I can see that someone has already done it
for the Chromium version. Thanks
add firefox add-on: a simple add-on button added.
Update config.xml
Merge pull request #12 from sylecn/firefox

add firefox add-on: a simple add-on button added.
Update README.md
Merge pull request #1 from openfaux/master

Fetch latest changes