Improvements to details view in stram events widget

Fixes [MLHR-1505](https://malhar.atlassian.net/browse/MLHR-1505)

![image](https://cloud.githubusercontent.com/assets/1390651/4599967/f7c92132-50cd-11e4-922e-280931b82d3d.png)

![image](https://cloud.githubusercontent.com/assets/1390651/4599972/0d31e0e0-50ce-11e4-9868-e034a15f6285.png)