handle plot line when there is only one point

Closes #126

See merge request !151

Change the way RT130 data is read for better performance

See merge request !139

Remove noneed plotting code

See merge request !147

Change to use matplotlib's lim for zooming

See merge request !145

plot SOH channels in user's order

Closes #110

See merge request !128

fix bug lacking of chan_db_info argument when calling set_axes_ylim()

Closes #121

See merge request !144

Fix Gps issues

See merge request !141

Change read_mseed_channels to use MSeed's RecordReader and apply is_multiplex

See merge request !140

perform finalize only once after data loaded

See merge request !142

fixing displayed extreme values for channels

Closes #104 and #96

See merge request !120

connect GUI to new mseed

See merge request !138

handle no known data detected

See merge request !137

combine get wf plot info to get chan plot info

Closes #112

See merge request !131

write new mseed that use record_reader for fast and simple data

See merge request !134

display tracking info when start reading new files

Closes #102

See merge request !127

save plot as a file

Closes #60

See merge request !106

tps scrollbar, label's position, color, height for each

Closes #88

See merge request !136

Fix bug Event DS not plotted

Closes #111 and #105

See merge request !121

Fix gps lk unlk plotting - coloring, positioning label

Closes #109

See merge request !126

Fix DSP Clock Diff channel not display

See merge request !129