Added author controls(Edit, Destroy) only for authors.
For both comments and articles.
Merge pull request #17 from RuslanGilyazev/Aufar

Added author controls(Edit, Destroy) only for authors.
Merge pull request #18 from RuslanGilyazev/Ruslan

Sing up and Sing in css
Comments fix
Merge pull request #19 from RuslanGilyazev/master

Update