Idea: compilation without exceptions

[MiKom]

As raised in #23 it may make sense to have a compilation mode where we don't use exceptions. It's not possible right as we use exceptions in constructors for some classes, plus some of our dependencies (most notably https://github.com/KDAB/KDBindings) throw exceptions.

This is more of a place for ideas/requirements collection not an actionable task yet