Update to init.el and to-do-states.el

Updates to init.el included disabling git, backup, and auto-save to
speed up workflow at work due to slow network drive speeds.

Update to to-do-states.el enables logging task state changes in the
:LOGBOOK: property. This was done do declutter the files in lieu of
finding a way to collapse state changes bullet points, "-", by default.
This seems to be the preferred method.