2.0 beta 2 is here!
Refactored the add/edit/delete attributes admin

- Code is now much more DRY.
- Always provide feedback for errors:
  - Error shown if attribute name, slug or type is left empty.
  - Error shown if attribute slug already exists.
- New error check added for attribute slug which should not be [a reserved term](http://codex.wordpress.org/Function_Reference/register_taxonomy#Reserved_Terms).
Corect ro_Ro translation

some small modification for a better and clear understand
change from singular to plural

on populars cupon
Merge pull request #2143 from a1ur3l/master

update the ro_Ro translation
Merge pull request #2139 from GeertDD/admin_attributes

Refactored the add/edit/delete attributes admin
Readme for #2139