Some consistency tweaks in preparation for adding extension to translatewiki.net

* Use UTF-8
* Use standard headers
* Remove non standard headers in front of the languages. Will be rebuild from translatewiki.net scripts
* Remove . from end of the description message
* Comment out two messages which seems unused.
** If they are used please comment in again and document the usage in the message documention section (qqq), see
** https://www.mediawiki.org/wiki/I18n#Message_documentation

Change-Id: If643a1032a9f27156a145b5f2cafcd2fbb6a2506
(cherry picked from commit 8f8567eabf05024d1b8cdccb4c289697eb752c8e)