Instance with name starting with a "." is invisible

[afyber]

System Information

MultiMC version: 0.6.1 develop-1107

Operating System: Ubuntu 16.04

Summary of the issue or suggestion:

When I create an instance thats name starts with a "." the instance does not show up. I investigated and renamed the instance folder without the period, it showed up in the list immedialy

What should happen:

MultiMC should compensate and replace the period with "_" or remove it from the folder name

Steps to reproduce the issue (Add more if needed):

1. create an instance with a name starting with "."

2. rename the instance folder without the period

Suspected cause:

It is a hidden folder because of the period

Logs/Screenshots:

Additional Info:

[peterix]

Should be fixed in develop.