move test stuff to test file
move more stuff to tests
clean up, add clearlarm
less chatty
add another tool to look at history files

This one will might be useful.
Decode most records!

Add decoding info for most of the bolus fields.
This has several bugs: it will not catch negative correction amounts,
and fails to associate unabsorbed insulin markers with a time,
although the age of the record is decoded!

w00t