How is each language translation managed on translatewiki.net?
A control page is set up by the developers when work starts on any language eg Portal:It, for Italian (It). This page contains links to general information about the language and to recent changes to the language interface translation on translatewiki.net. It also contains a list of the wikimedia projects in the language and records the users working on the language. The list of ‘mainteners’ (users working on a particular language) is on Translating:Languages (as explained on Translating:How to start). The name of your language on this list should be in blue because it should have a wiki link to the Portal:XX page (for language code XX). If it is not on the list then go to the category of language and message pages on Category:Languages or go to the list on all pages Special:prefixindex/Portal:. If there is more than 1 maintainer of a language then you can use the talk page of the Portal to discuss the translation amongst that language translation group, eg. Icelandic talk page.