The joubel/core and joubel/editor libraries have been moved to Moodle
namespace.
This commit adds the new namespace to the places where these classes
are used.
Besides, a couple of minor changes have been done to replace the _test.php
classname and remove some unnecessary defined('MOODLE_INTERNAL').
H5P editor has a folder with all supported languages in JS files.
A mechanish has been added to let users to translate them using AMOS.
That's how the translations are managed (the order how they are processed):
- If there a JS file for a language, it's loaded.
- If a string has been translated in Moodle (they are placed in
h5plib_vXXX), it will override strings loaded from the JS file.