Sorry for getting back that late. Thought I get an EMail when someone adds content to the project but apparently I did not. Anyway, version 1.0 is free of any Extension Library so you could use it on domino servers prior to 8.5.3.
Version 1.1 uses the application layout to generate the web application, so 8.5.3 is needed for that. The Dojo mobile app uses the 8.5.3 ExtLib mobile features. The jQuery mobile app however is free of ExtLib stuff and can be used on Domino servers before 8.5.3.
Hope that helps!
Henning