Feature request: Able to edit members info

[kamlekar]

In my case, to avoid members getting the invitation and other expense notifications as spam, without much explanation, I used dummy emails. Once all expenses were added, I tried changing the emails to the correct ones, but there is no option for that.

Also, I thought I could export, edit emails and import the JSON data. But there is no option to import.

[rhkenji]

I wish to be able to add users without emails/inviting specially if you just want to track of expenses without getting anybody involved.