AIC protected mode now enabled by default.

The ctl interrupt handler now checks for spurious interrupts.

The reset script now uses the nSRST signal to reset the target rather than the watchdog. To support this, the startup code no longer allows the program to startup by itself from reset by default. See the comment regarding STARTUP_FROM_RESET in the startup code for more information. Please note that projects created using project templates from the 1.0 version of this support package will not work with the startup code and reset script from this version - you should recreate your projects using the project templates from this version.