now enables preview regardless of tour status

Fixed an issue with non-standard markers - scroll-into-view previously only worked for the red (default) ones.

URLs were updated, script updated accordingly

Fixed a bug, which would cause the submit button to re-appear when a script was edited.

Now adds a button that generates text-to-speech for all locations. The button can be found under Overview.

in script view, adds a setting Publishing Mode, which, when disabled, prevents you from accidentally publishing a script instead of saving it - by simply hiding the Publish button