manage language features

[Gianfire]

u should add a field to search a 'string' inside a lang_xxx.php.

so if i need to change a particular board title , i cut it, go inside this field and paste it, then i find the <ibf.lang.variable> which contains it, and i can change it easily.

2) the updater program should not overwrite the modifications made by me in <ibf.lang.variable>

[Antony]

Would be handy, +1.