Fix dirrmtry action in keyword being properly mapped to dirrmty function
Handle gracefully directories like files
Add utarray.
Requests are now hashed by universe ptr.
Move definitions to specific header.
Move priorities management to pkg_universe.
Move more code.
Split universe handling function.
Fix jobs processing.
Add find utilities.
Rework candidates selection.
Fix cudf module.
Rework conflicts.
Rename pkg_conflicts as it is jobs part.
More rework.
Fixes for jobs code.
Refactor names.
Fix compile issues.
Start SAT solver refactoring.
Finish SAT solver rework.