Changed two strange looking places in boot.php.

There have been two places that looked wrong, but I don't know how I can test
them. So please review and test if I am not wrong.
Fixed a variable conflict in mod/xchan.php.

A variable $rr inside the foreachs was used twice.
Add translation to mod/xchan.php.
Merge pull request #691 from dawnbreak/master

Changed two strange looking places in boot.php.