Merge pull request #319 from asmecher/8922-fix

*8922* Stop endlessly respecifying default column template filename
Remove unnecessary phpunit installation
Submodule update
*8627* allow class attribute on list items
Submodule update
*8356* Add user agent to PayPal IPN requests
*8979* Drop specific SSLv3 configuration
Submodule commit
Submodule update
*8973* add new JS handler to minified scripts
*8868* Add translator plugin to OJS master
*8868* Adapt to new LessPHP
*8868* Submodule update
*8868* Submodule update
Submodule update
Submodule update
*8973* remove unused handler
*8868* Translation plugin core tweaks
*8868* Submodule update ##asmecher/master##
*8868* Submodule update