[Scythe42]

I tried to bugfix this one because I need a simple invitation system and didn't want to write one from scratch. If you try this one one, please let me know if it fixes your issues. The attached product is a simple export from my forum.

I made the following changes:

• no more need to double click on the invitation link
• invitationcode cookie gets removed once the user has signed up
• account verification after signup isn't blocked by an invalid invitation error code anymore
• deletions of invites now delete the correct invite
• added permissions check when trying to delete an invitation
• if a user deletes an unclaimed invite, he gets one invite back
• you cannot sent multiple invites to the same email address
• you cannot sent invites to already registered email addresses
• added no invites sent message to usercp tepmplate
• changed some phrases to proper English (hope so)
• added some additional phrases

Let me know if this one works for you and I'll do some more updates and optimizations and release this one as an supported fork once 3.7 hits gold because the original author seems to have lost interest in his mod.

Use at your own risk!