give a 'Start Loading' message when user choose to start reading new folders; and 'Cancel Loading' when there is some problem with param setting that stop the loading

adjust color, text style for tracking box; make background-color fill the whole box instead of highlighting the text only

fix bug no ruler showup when no TPS data

Closes #113

See merge request !125

Fix previous plot still showing when re-plotting after zooming in

See merge request !115

separate  data at gaps/overlaps

Closes #100

See merge request !119

Showing gap bar in waveform widget

Closes #91

See merge request !117

round min_y, max_y to 2 decimal places

Closes #97

See merge request !116

Replot for TPS to apply colorange inside TPS only

Closes #85

See merge request !113

change MP? to MassPos? in DB. It's been changed before. But for some reason, it went back to MP?

See merge request !114

add clear function to PlottingWidget and call it for each plotting widget used

Closes #77 and #55

See merge request !104

make SOHWidget to use processor like WaveformWidget

See merge request !109

Show time label on top of ruler

Closes #71

See merge request !96

Fix RT130 plot failing

Closes #70

See merge request !108

fix bug calculate find_tps_tm when the end time fall into the last 5 minute of a day

Closes #81

See merge request !112

This reverts merge request !102

fix bug calculate find_tps_tm when the end time fall into the last 5 minute of a day

Closes #81

See merge request !102

I86 bug click point

Closes #86

See merge request !111

Save read options to config file

Closes #78

See merge request !107

Fix problem with GPS plot

Closes #79

See merge request !110

remove merge, index; retrieve gaps, overlap; plot gap;overlap with different color

Closes #68, #67, and #57

See merge request !100