language update  refs #3430
Merge pull request #318 from piwik/translationupdates

[automatic translation update] Updated 212 strings in 40 languages (am, ar, be, bg, ca, cs, da, de, el, es, et, eu, fa, fi, fr, hi, hu, id, it, ja, ka, ko, lt, lv, nb, nl, nn, pl, pt, ro, ru, sk, sl, sq, sr, sv, th, tr, uk, vi)