This commit adds new strings to the de/de-informals files which
have been introduced through the new Media-Manager.

All lang.php-files in inside en/de/de-informal have been
reordered and reformatted.

Function get_plugin_components() moved to extantion manager

Attention: $lang['register'] has been renamed to $lang['btn_register'],
anyone using that in any plugin or template should adjust it.

As of VIM 7.3 it is no longer possible to specify the encoding in the
modeline. This gives an error message whenever such a file is opened,
thus this commit removes the enc setting from the modeline.