thank you for this nice and simple plugin! i'm setting up a multilingual website using qtranslate, but unfortunately your plugin doesn'support seem to it!
i translated realtyphp-hu_HU.po to german and moved these files to a new de_DE folder in /wp-content/plugins/realtyphp/application/languages, so this works fine.
i also added a realtyphp-de_DE.php and modified it to my needs, works fine too, but i can't enter the listing title or listing text in different languages.
so if oyu could add support for qtranslate soon, i would love to provide you with language files in german, italian, spanish, french and russian in return :)