Release notes for August 6 release

@mhoeber , @srpearce please review to see if I missed anything that you worked on
Bold **Advanced Components**. Also, I'm not sure what this means. Where does the **Advanced Components** dropdown list appear? Does "the title" refer to the names of items in the list that appears when the user clicks **Advanced Component**? 

I'm guessing that the user clicks **Advanced** under **Add New Component** and then selects items in a list, but since the user has to specifically enable advanced components in the course advanced settings, I'm not sure why the items in that list wouldn't have titles, and I'm not sure where the display name comes into play. 

Or... does this refer to the list of components that appears when the user hovers over a unit in the course ribbon? If so, maybe we could change it to something like this:

In the course ribbon at the top of the page, the names of components in a unit did not appear when a user hovered over the unit if the user did not enter a display name for the component. Now, if the user does not enter a display name, the category name for the component appears in the course ribbon. (and add a screen shot)