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.

Added a Checkbox to the language import form to ignore the version of the language file.

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

- Italian update

- Full merge of all language
- Small italian update