coffee-mode supports using tabs instead of spaces

coffee-mode users can use only spaces.
Now coffee-mode supports using tabs.


Set coffee-indent-tabs-mode to non-nil if you want to use
tabs instead of spaces

 '(coffee-indent-tabs-mode t))

You can control to use tabs per buffer because coffee-indent-tabs-mode is
buffer local variable


coffee-mode supports using tabs. I suppose it is useful for
tabs users. Please report me via github issues, if you have
any problems or suggestions.

This is atomita san's idea.
Thanks atomita san!!