Nuke quicksort and canonicalize radixSort as "the" sort

Update jump table too, which actually didn't contain radixSort.
Fix backward upside-down question mark
Allow font customization

Set up a pointer to the font table that the font routines use instead
of a hard-coded value.  Initialize this pointer on boot and forget
about it.
Merge pull request #37 from KnightSoft/fonts

Customizable fonts
Merge pull request #32 from matrefeytontias/master

Changes on display.asm and utils.asm
Add references to other functions in SHA1 function documentation
Clean comments in display.asm

Mostly they just needed to be aligned.  I did remove a couple that
make no sense in KnightOS context.
Update docs for memory.asm
Added test unit for sort routine