let user select one of the folders data/, sdata/

Closes #133

See merge request !190

Make GPS Lk/Unlk and GPS Clock Power to plot in the same channel

Closes #162 and #142

See merge request !180

Read log files generated by users

See merge request !191

Change implementation of data type detection

Closes #160

See merge request !183

Fix RT130 data from old firmware can't be read

Closes #153

See merge request !177

Set up tox

See merge request !187

Update Python support

See merge request !184

Fix bug when click on RT130's mass position point

Closes #171

See merge request !197

add <pre></pre> to text in tracking box to preseve space and line break

See merge request !196

fix call to set_axis_info() in add_gap_bar()

Closes #170

See merge request !195

skip retrieving GPS info if no gps_prefix found

Closes #167

See merge request !194

cancel loading when user answer NO for the pop up about data type detected

See merge request !193

setChecked the radio button when the data_set_key_radio_button_dict is completed

Closes #168

See merge request !192

Fix return when user select Abort in multi button dialog

Closes #166

See merge request !189

Give warning when saving a plot but the selected folder doesn't have write permission

Closes #165

See merge request !188

Give the option to plot three lines for different values and colors

See merge request !179

I164 warning if no data

Closes #164

See merge request !181