Do the timer, screen-blanking, and scrolling parts
Basic functionality is functional
Update characters_full_color.h
Add scrollReset; change statics to global statics
Fix all the things!

Except the things I was unable to fix.
Reset blankScreen on scrollReset
Fix AM/PM indicator; fix printing part of char

Previous the AM/PM indicator was messing up the text if button 7 was
pressed whilst scrolling the time.
Remove PORTC debugging
Merge branch 'scrolltime'

Conflicts:
	characters_full_color.h
	charscroll.c
	charscroll.h