Addendum to 7a812a13: extract all "java version" configurations in dedicated file.
Switch unit tests to RoboSpock (Spock + Robolectric). Still dies in the IDE, but a workaround is documented.
Todo Contentprovider now understands content://.../${aggregateId}.

Handling in the UI still needs major refactoring, because it uses the content://../${id} format on loading. And it is ugly as hel anyway.
Todos can now be updated via save, and the contetprovider issues the right updates. Still ugly though
Update readme