KrzYoptimizer v1.04 revision 2

Again there is another release of KrzYoptimizer. Since last post I added:
- Added PNGslim (alpha):
* works only on external files
* WRITES FILE TO DISK while optimizing
* doesn't fully interact with gui
- Menu
- Now you need to File->Open file
- After optimization you need to File->Save (As) file
- Added Preconfigured modes:
* Fast: Max Blocks Limit = 16, Random = 10
* Medium - 128 and 100
* Extreme - 2048 and 1000
* Custom - confgured in settings.

Some v1.03 screenshot, interface is the same in v1.04.2: