First successful attempt of extracting "Increase size" header to .json
file.
Extracted all main page texts to .json files (and deleted
"Customize ..." header).
Added a language label.
Currently text resources are acquired the "ugly" way.
Localised the "more/less" button on init. Needed a nbsp in markup for
Chrome to render (and slide) it correctly.
All localised text of main page is set onReady using the
uiOptionsLoader's msgBundle.
Removed the Save etc. buttons' texts from markup.
Extracted the contrast preview text to .json file. Not very elegant
solution.
Extracted the text size and magnification preview text to .json file
the same way as before.
Added greek translations.