Benglin/Dynamo — pull request #200 by aosyatnik (2014-11-13 10:15:08+00:00)
Title: DUI: Addons button.

Addons button was created based on this picture:
![image](https://cloud.githubusercontent.com/assets/8158404/5026620/9bf0ac60-6b2e-11e4-8d16-f83a27ce10e3.png)

Reviewers
@Benglin ,@vmoyseenko, please take a look.