Language Translation-Secure Invites

Hi,

Thanks for the great plugin. I have a question though, I don’t see any po or mo files in the plugin file. Is there a way that I could translate some strings such as “name of person to invite”, “e-mail of person to invite”, “a personal message” etc to another language? Should I hack the php file? This is really important for my site.

Thanks,
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https://www.ads-software.com/plugins/wordpress-mu-secure-invites/