navigate away without saving

[pihentagy]

Manytimes I find myself doing the following:

• modifying a query
• running it
• navigating away

In this scenario, RESTer allows it and the changes are not saved. I'd like to be asked, if I want to save changes or not.

[pihentagy]

And it would be nice, if the UI would indicate if it needs saving.

So, when in a clear state, the Save button should be disabled.