BRANCH 4.1:
  reverted the last Expression change which was an attempt to fix the calc_mode fast issue
  made the table only draw the bottom and insert row and handle the grouping logic when temp is not True
  turned off async loading of the group column has group_bottom defined
BRANCH 4.1:
  fixed a bug in ActionButtonWdg by adding the spt_label class to the cell
  made export_matched CSV Export to use init_load_num of -1
Merge branch '4.1' of https://github.com/Southpaw-TACTIC/TACTIC into 4.1