Manual import of translations from TWN

Change-Id: I51f6acd40582ba109d7e062cee56e48a97fa2785
Getting "Wikipedia" and "The Free Encyclopedia" into qqq.

Change-Id: I40ad568948c1a8598a441153719502eb9089036b
References click backend: detect link clicks and send data over bridge

* fixed URI encoding in bridge communication
* copied refs extraction JS code from Android patch in progress
  at https://gerrit.wikimedia.org/r/#/c/146086/4
* sends array of HTML strings for adjacent items, and index of clicked one
* now with refs.js actually added
* added linkId and linkText arrays with the id and text of the link

Change-Id: I0e4ec802e7e493a2d0caa759affa8e7ed3eaa8b6
Work in progress.

Change-Id: Id441e0c5bd281fea54ee9e91bb5f24f1d6a5610c