Version 0.23 released

Added ISR breakpoint functions.

In order to debug interrupts, add breakISR() function call into your ISR() handler. For example:

ISR(TIMER2_OVF_vect) // My ISR() handler
{
    breakISR(dumpmon::timer2_ovf);
}

Compile and upload the dumpmonISR sketch from DumpMon examples. Open Serial Monitor, ISR breakpoint occured with message 'TIMER2_OVF interrupt'. Send command N or G to restart interrupt debugging. Next ISR breakpoint occured.

Use * command to switch ISR debug state on and off.