THE SINGLE BEST STRATEGY TO USE FOR ROCHUS-KELLER

An analysis with Valgrind unveiled that the costliest capabilities are mutex locking/unlocking, malloc/free and QImage handling. So I did some optimizations concerning QImage. In dedicate 1f976e5b5ee3cfe40921c74b97edb8d84ff39dd3 I reorganized the Smalltalk bitmap to QImage conversion which resulted in testStandardTests functioning time of 142 secon