* Remove unfilled formatting placeholders in KLT parser.
* Fix presumably unintentionally missing reference on PlanatPtr and ChunkyPtr call operators.
* Fix catching pointer and make use-after-free of workimg easier to spot.
Make sure all of our thrown exceptions derive from std::exception and then catch
by reference instead of by pointer.
* Fix mismatch between array form new and non-array form delete.
* Simplify memory management of embedded color profiles by unifying allocation to use operator new.