Add word "Kernel" to all respective language files in stable3.1.

$wb['monitor_serverstate_kernel_txt'] = 'Kernel';

In relation with the earlier merged commits of !790 
 and !791.

Merged all language files.

fix for local characters not encoded properly in welcome-email. remove trailing empty lines from finnish language, again...

Added more translations to monitor-module, mostly done now, couple annoyances left. merged changes with all languages.