Changes from Release 2.1 to 2.2

1. The Evolution Strategy optimization is modified to incorporate a newer technique for much faster processing of larger genetic pools. This change may produce slightly different optimization results if compared to a previous ChaosHunter releases. However, given enough time to run, optimization results should not differ much from previous releases.

2. The Cancel button is added to the dialog that prompts the user whether he/she wants to start optimization from scratch or continue optimizing the existing model in memory. The Cancel button allows the user to abort optimization and return to the parameter window.