v0.0.4

• Separates the single glucose use into its individual components: walsh_insulin_effect, scheiner_carb_effect, and glucose_from_effects. The glucose command remains for convenience and compatibility, but its implementation simply runs through the other components.
• Adds the walsh_iob command to calculate total insulin on-board from normalized dosing history.
• Adds support for timezone-aware timestamps. It is up to the user to ensure that either all pump & glucose history is timezone-aware or that it is all timezone-naïve. Mixing the two will raise an exception as comparisons become unclear.