Ability to rename saved views is gone in Hydro rviz.

[hershwg]

This change c6dacb1 (make read-only properties appear disabled) breaks the ability to rename saved Views.

Open the "Views" panel, click "Save", then click on the newly-saved view entry which will be named after the current ViewController, often "Orbit".

First problem is that the entry has a gray text color, so looks bad.

The next problem is that the entry is not selectable, so there is no way to rename or remove it. In the old days (before c6dacb1), the saved view entries were selectable but read-only. They were drawn in black text and were remove-able and rename-able.

In my opinion the change c6dacb1 could just be reversed.

[dgossow]

I'm ok with reverting

[dgossow]

I actually fixed this a while ago on my local checkout. Merging #687 will fix this problem.