Introduce PJLIB to memory_handling.h - WORK IN PROGRESS.
Fix PJLIB presence/absence.
Work on PJLIB.
Progress on simplifications & PJLIB.
Fix in a test example.
Progress.
Debugging candidate selection.
Fix (& make faster) projection based selectors.
Fix gcc compilation.
Fix allocation/deallocation.
Final fix of refinement selectors.
Catching memory errors.
Add deallocation to ref. selectors.