With this add-on, you will support Macedonian and Serbian letters in rewrite_url.
supported letters:
Љљ Њњ Ѕѕ Ѓѓ Ђђ Јј Ќќ Ћћ Џџ
HOW TO INSTALL:
Download CyrillicRewrite_1.0.zip and unzip it.
Upload the CyrillicRewrite folder to your server. The correct location is library/CyrillicRewrite...