Amidst all the confusion with Crave Forks and now that vulnerabilities are being shown in the code, Crave will be reborn as Mercurial. There is no ICO, The Sourcecode will be worked from the Existing Problems of Crave and Resolving Them.
The fork drama you have made is actually not technical problem. This is heavy communication problem and making any kind of rebrand will not solve it. Basically you have to calm down and start talking to community instead of making statements. You have to be sure that you talk to community in same "language" and they understand what you do and what for. Then ask community for help with testing your product to make it mature and reliable. More or less intentionally your requests has been either ignored or missed what lead to publishing incompatibile and broken software. What might cost many people lot of real money. Software development is a complex thing so instead of making yet another crazy move, make community involved, build a team and proceed.
I will request Bittrex to be in on the swap (AND BY ALL MEANS ONLY BITTREX) and give them whatever coins they estimate and they will swap it.
I don't think at THIS MOMENT anyone will let you bury crave this way. You can always start own coin, get listed on bittrex or anywhere else and have fun.