TODO.txt

global.c system.c pwrmgr.c - fix up this code! lots of little (but rare) issues with interrupts happening just before going to power down sleep
draw.c - also fix up this, cleanup that struct image_s stuff and maybe convert draw_bitmap_do() to ASM to see if its any faster?
millis.c/millis_isr.s - use flags that are processed in the ISR instead? also reduce millis resolution to 4ms? nothing in the code really needs 1ms res
bool/BOOL


Make a better readme
Arduino stuff

Alarm snooze
Options for alarm snooze
Improve alarms menu
	- Use new WE/TU icon things
Improve games menu
Options for setting what up and down buttons do when on the main watch display (open stopwatch/alarms/games etc)
Make menu option name animated, move off then back on or something
sleep mode options
	- Off
	- Low power (dim screen)
Reduce CPU clock if animations are disabled (and at other times too?)
Update the display less often (saves power)
	- Only draw when needed
	- Seperate logic and drawing
Sometimes the sounder 'pops' due to bad waveform output
Options for LEDs (brightness etc)
Fancy USB plugged in screen anim?
Countdown timer
More games?
Option to return to main diplay after going into standby

Finish support for DS1307, MCP7940x and internal RTC sources
Finish support for LED flash patterns
Something to show sunrise and sunset times? User will need to enter their latitude.
Record time of USB unplug