Translations of Bugzilla 2.22rc1, 2.22 and 2.20.2

This friday and saturday I managed to complete the translation of the new branch of Bugzilla - 2.22, as well as to do the translation of the 2.20.2 version. The packages for the official version I put on the project pages few minutes ago, as well as on my personal ftp sever. I hope the are usefull for someone, because considering the count of the downloads the translation doesn't draw much interest. Good night! ;-)