- Instead of loading all in the constructor, provide a public
setupModelData().
- This allows creating the model and setting it for UI, before
the load completes.
- Check groups
- Check whole treemodels recursively (this is not in PackageTreeItem,
because that explicitly ignores the tree structure).
- Also a stub of checking example files (from the src dir)
- The model always has two columns, and the column names are always
the same. We don't need to specially set headers for that.
- Use QCoreApplication::translation() to re-use the existing
translations and avoid creating "new" strings (in a new context).
- Use only utils/YamlUtils.h to pull in yaml-cpp and supporting code.
- When compiling with clang, turn off warnings that the system header
for yaml-cpp would generate.
