implement RBAC

[Retasusan]

implement RBAC

• issue

what I've done

• add content/ to .gitignore
  • this may not good
• add conditional branch to IssueToArticle function
  • this may not good too
• add allowe_author param to init.go, --init command
• change type definition of yaml
• add test for IssueToArticle

what I want to ask

• As one of the developer, it is a hassle to check every time whether gic.config.yaml or the content directory has been pushed. Is it fine to add content or gic.config.yaml to .gitignore file?
• In this implementation, specificaly in cmd/generate.go and pkg/converter/article.go file's below implements, all nil will treated as error. But in the RBAC, I want to ignore the non allowed user. How can I implement this ? Please give me some oracle...

for _, issue := range issues {
  article := c.IssueToArticle(issue)
  article.Export(conf)
}

func (a *Article) Export(conf config.Config) {
  // Build String
  text, err := a.Transform()
  if err != nil {
  panic(err)
}