Remove #ifdef debug code.

Not enough spare device program memory to enable these anymore so time
to clean up the source.
Remove unused start_time register code.
Removed eprom debug memory dump feature.
Remove leftover reference to start time register.
Corrected name for clear LDR sensor.
Corrected push button switch to be down to GND.

Micro controller supports internal pull up resistors, not pull down
resistors.
Changed from 15 to 6 samples per min with more sleeping.

This saving more power, and seems to avoid an occasional device reboot
(theory is due to using many short naps to make the previous 2sec
sleep). Using a mix of 1.1sec, 3 x 2.2sec, and 2.3sec for a total of
10seconds of low power.
Report the sleep period as part of the header block.

The client no longer needs to rely on a hardcoded value for the record
period in case it changes in the future (the default for hardware
running old firmware will assume 60sec).
Ignore some file types

Ignore some source code editor file noise.
Version 0.6 circuit designs

Schematics and board layout for the surface mount version of the board.
Includes new light sensor chip and five LED display for user feedback.