Added sqlite database backend
Better timeparsing, remove 1 day if time is in the future
Edit functionality, context menu + click on latest
Autofocus next field if a certain number is entered, or "-"

Numberlogic: if another digit is added, the value would be abnormal,
carbohydrats autoaccept values between 24-99. If it starts with less
than 24 it usually is tripple digits.

Also selects all text after refoces, nice in edit mode.
Added a graph showing the entries
Fixed inputs to allow "-"
Pauses graph updates when app pauses
Buildfile