Clicking 'save' button on 'edits_group' page does not direct back to the 'show' page

These are the steps I took:
* on the conversation 'show' page: 
* clicked on the 'edit' button next to the Contact Groups header
* on the 'edit_groups' page I selected multiple groups and clicked 'save'
* I clicked the 'OK' button on the 'groups saved successfully' pop up
* I am then returned to the 'edit_groups' page

I should be directed back to the conversation show page after saving my groups.

Also, the groups on the 'edit_groups' page should be sorted by group name

![screen shot 2013-08-26 at 9 38 19 am](https://f.cloud.github.com/assets/1521387/1024379/27c99040-0e23-11e3-9ddc-2e01571271fd.png)