Fixed overflow error in SBC with 16-bit accumulator

Release 0.5.4.1

Fixed a bug in the SBC when using a 16-bit accumulator.
Removed the "Open Hex File (w/o Zeroing)" - the option was confusing.
Removed the silly blue border around the GPU control.
Fixed loading of breakpoints with the Foenix XML file.

Generating Timer Interrupts

The IDE now generates timer interrupts, when the timer control register is enabled.

Only the CHARGE timer registers are used to determine the interval. Minimum interval allowed is 1 millisecond.

Fixed math co-pro error with signed multiplications

Sample code in BASIC:
z=1
z=z*-1
print z

This used to return 65535 in the IDE and -1 on the machine.

release-0.5.3.5: Release 0.5.3.5

Release 0.5.3.5

Made the kernel auto-start, by default.
Fixed the command-line arguments. Added --help.