* Added Portuguese translation (thanks vitorsena - Vitor Sena Melgaço)
* Finished French translation
* Fixed Spanish typo
* Added "string "Add URL here" in English (source) and changed fixed value in add_torrent.xml file
* Added strings "download/upload rate limit (KiB/s)" in English (source) and changed fixed value in download_rate_limit.xml and upload_rate_limit.xml files