Base translations use wrong classes

[ArchBlood]

What steps will reproduce the problem?

Look at the translations they're still using old classes that aren't in the current versions of HumHub;

What is the expected result?

Instead of HActiveRecordContent or HActiveRecordContentAddon the correct classes be used in all base translation files.

What do you get instead?

These classes do not exist as of v0.20-beta.1 release and were then replaced

humhub/protected/humhub/messages/ja/base.php

Line 25 in 39c1ff2

'Content Addon source must be instance of HActiveRecordContent or HActiveRecordContentAddon!' => 'コンテンツアドオンソースは HActiveRecordContent または HActiveRecordContentAddon のインスタンスでなければなりません！',

Additional info

Q	A
HumHub version	1.x
PHP version
Operating system

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