Lps 40606 OpenSocial Gadget Publisher needs Bootstrap

Jira ticket: https://issues.liferay.com/browse/LPS-40606

Create button styling to "Publish Gadget" and "Refresh Gadgets" by adding `class="btn"` to view.jsp

Result:

![selection_006](https://cloud.githubusercontent.com/assets/7980348/3984728/6aa61b9a-288a-11e4-86e2-dcb41bb7d040.png)