Fixed port lockdown. It was caused by an awful distraction while sending the digital signal to the arduino.
Added reverse motion to the stepper class.
Fix bug on reversal that was making only full steps;
Optimization to avoid turning off and on unnecessary ports;
Added logics to the shooting sequence.
TODO: isolate the code from the main app
TODO: Call the capture settings with a thread and update the status on the UI
Reducing window;
Increasing width to give better control over widgets;
Fixed double action on "do it" button due to MouseDown and MouseUp double triggering;
Added Exit button;
Reordered some options to create a proper grouping;