FGI should create the issue branch for the user. ...

[MatthieuGC]

The user should be able to skip it with an option like '--later'

[brenau-j]

Branch name should be like

"#{issue_id}_#{sluggified_issue_title}"

sluggified_issue_title is equivalent to this Rails code

sluggified_issue_title = issue_title.parameterize[0...50]