gnucash gnucash-1-9-0 at 13158,: Multiple changes pushed

[John Ralls]

       was  https://github.com/Gnucash/gnucash/tree/ce5fd3e4b93ab475841c0c59454149b45ef8c3e2


tag gnucash-1-9-0 at 13158,

   Fix an off-by-one (day) error in the dates used by the summarybar.    Factor out and publicize functions to get the start and end of the    accounting period in the preferences.    Mark one comment as probably obsolete.
7a34532f1177467d4259bdf4cb221b90cd69ef6a    Fix an off-by-one (day) error in the dates used by the summarybar.    Factor out and publicize functions to get the start and end of the    accounting period in the preferences.    Mark one comment as probably obsolete.