timefmt revision 1 of 4
- replace per-axis timefmt with a single global timefmt
- catch missing 2nd parameter of timecolumn() and emulate v4 syntax
- separate flags for input format (axis->datatype) and output format (axis->tictype)
timefmt revision 2 of 4
- replace macro SAVE_NUM_OR_TIME with subroutine save_num_or_time_input()
timefmt revsion 3 of 4
- report and save xyz position using time coordinates if appropriate
timefmt revision 4 of 4
- new command set {xyz}tics {timedate|geographic|numeric} sets axis->tictype
- output routines (gen_tics copy_or_invent_formatstring) look at axis->tictype not axis-datatype
- axis->tictype setting is reported along with axis-format by "show" and "save" commands