- moved Zweitbetreuer Text
- added icon with quickinfo for Tokensend instead of button with text
- disabled grading button and quickinfo instead of text for older Projektarbeiten
- application/extensions file system permission now is 775
- application/logs file system permission now is 775
- Added extensions directory in application/: config, controllers, helpers, hooks, libraries, models, views and widgets
- Added view views/extensions/manage.php
- Added controller controllers/system/extensions/Manager.php
- Added library ExtensionsLib to manage extensions
- Added model models/system/Extensions_model.php
- Moved code related to print out info from MigrationLib to EPrintfLib