Exclude buttons with vendor class
Add test for vendor buttons in toolbar
Switch from class to attribute for vendor buttons
Fix test for toolbar plugin
Update test for toolbar plugin

- Remove done() paramter and call from it() , we're returning a promise
- Use Array.prototype.forEach instead of a for-loop
- Remove function name from test comment
Merge pull request #92 from bahlo/aba-toolbar-vendor-buttons

Toolbar vendor buttons