BugFix: Issues related with deleting mcu while simulating or debugging.
Add persistance to Clock and Wavegen on/off state.
BugFix: Avr not cleaning properly at reset.
Improve diode stability in some cases.
BugFix: RamTable not showing ram values by address.
BugFix: KeyPad: is posible to hide keys, make them unselectable.
Added some examples and some cleaning
BugFix: Avr crashing with wrong firmware.
Featur request #38 Save state of plotter and serial widgets. And some cleaning.