updated sparselogticks to always show 2-3 ticks #499
updated sparselogticks to always show 2-3 ticks #499

NMGRL/pychron,UManPychron/pychron,USGSDenverPychron/pychron,NMGRL/pychron,UManPychron/pychron,NMGRL/pychron,USGSDenverPychron/pychron,USGSDenverPychron/pychron,UManPychron/pychron,USGSDenverPychron/pychron,NMGRL/pychron,UManPychron/pychron