I will add access for others to commit code once we have actually formed a team and worked out roles, but you can submit patches as pull requests, or report issues on https://github.com/masternodecoin-community-team/masternodecoin and I'll take a look at them (but I would appreciate pull requests, as I am not a wallet developer).
In the long-term, it might be better to switch to a different codebase and perform a swap like IdeaUpdater was talking about, but this should be decided as a team and will involve a lot of work and preparation that I cannot do myself.