submodule update
language update  refs #3430
Merge pull request #223 from piwik/translationupdates

[automatic translation update] Updated 524 strings in 15 languages (bg, da, de, el, et, fa, fr, he, it, sv, vi)
Add SitesManager.addSite.end hook at the end of addSite function.
Merge branch 'SitesManager-API-addSite-hook' of https://github.com/czolnowski/piwik into SitesManager-API-addSite-hook