This pull will make the name of of the template folder configurable in the script (in addition to choose on from the folder list, if the folder "Template" does not exist).

Hi Chris!

I made a little change to your great script, to make it more useful for me. Maybe others can make use of my little tweak?

## Introducing new property 'defaultTemplateFolder'
The name of the folder with the templates is now configurable. Instead
of choosing a name from the folder list you can now store the name of
your template folder in the script.

## Old behavior of scipt
* search for folder "Template"
* if "Template" folder does not exist, show list of folder names to let the user choose one

## New behavior of script
* search for folder name from property defaultTemplateFolder (which defaults to "Template")
* if property defaultTemplateFolder does not exist, show list of folder names to let the user choose one

## Advantage
You can configure the property to the name of the folder with your templates (in my case it's the german word "Vorlagen" for the templates) and use the script without the need to choose a folder from the list.

Thank you for your patience!
Karsten

ps: and thank you very much for this brilliant tool!