Language  build pretest

['en','ar','bg','ca','da','de','el','es','eu','fi','fr','he','hu','is','it','nl','no','pl','pt','pt-br','ro','ru','sk','sv','tr','uk','zh-cn','zh-tw','sl','gl','si','az']
Changed a few functions to manage better all the translations
Languages with less than 50% completation are discarded.