Refresh rules text after saving

[dorschs57]

This fixes an issue where the user adds something like a trailing white space to the rules, which the rust parser strips. Previously the UI was not being refreshed with the newly stripped text, so what was showing in the UI was out of sync with what was actually saved in the System object.

To Test this:

1. Edit the rules text by adding a single trailing space
2. Save the rules
3. Check in the editor and the trailing white space should be gone

Closes #725

[jw3]

The RPM build broke due to #728, I patched the wiki and rebuilding.