Added latest version of Japanese language support, thanks to Shiro Tamoto from Nagaoka University of Technology, Japan

(cherry picked from commit e500ebb0)

This reverts commit 3ee9c02d, reversing
changes made to 4df2bf05.

# Conflicts:
#	Services/Authentication/classes/Provider/class.ilAuthProviderFactory.php
#	Services/Init/classes/class.ilStartUpGUI.php

(cherry picked from commit 0903a519)

0020725: Transmitting information to Radius or LDAP terminates if user password contains an angle bracket

0020821: Missing "new" operator when throwing excpt. in \ilImportExportFactory::getExporterClass and \ilImportExportFactory::getImporter

[FIX] 20462: correct behaviour of ilDBPdo when dropping tables