Import translations for Havana release

* Import translation update of 100% completed languages.
  12 translated languages are avaialable.
* Russian (ru) and Chinese Taiwan (zh_tw) newly completed their
  translations since RC1. They are added to the language list.
* Update POT files

This commit is directly proposed to milestone-proposed branch
because the master branch is already opened for Icehouse development
and the translatable strings are no longer same as those in Havana.

I believe it is the final import.

Change-Id: I9e8e7c28fae64f1aad7fbd5f226910fb9ee6a325
Closes-Bug: #1234317