gain toAscii method please

[newbie78]

I found missing variants in $charsArray :
'a'=>'ä'
'ae'=>'æ'
'ss'=>'ß'
'U'=>'Ў'
'u'=>'ў'

tnx for your exellent package!

[danielstjules]

Thanks! ä, æ and ß were already there, but I'll add the other two!

[danielstjules]

Added in e8afcff :)