Hello Cyril,
You did a great job with the Serbian layout, thank you. I would like to see an Albanian keyboard also. The layout can be the same as the English layout with the long press of C giving an option of C or Ç & the long press of E giving the option of E or Ë.
http://en.wikipedia.org/wiki/File:Alban ... layout.jpg
I hope this can be implemented quickly. If I can be of any further help, I stand at your disposal.