Full support of the requirements and language
All the rest of language not covered under #16 (closed) comes here. It includes all that conflict resolution, alternative dependencies, etc.
- Subtask #151 (closed) (Repository integrity error handling)
- Subtask #137 (In plan ordering support options order_after and order_before)
- Subtask #150 (closed) (Package ignore installation errors)
- Subtask #199 (closed) (Add support for hooks as described in Language design)
TODO this is not full list.