plot_type_dialog.py: send field_name='description to add_widget() to have a better display for nextline

param_dialog.py: handle warning message when plot_type is empty or ValueColors isn't available; different ValueColors' placeholder text if plot_type requires ValueColors

db_config_dialog.py: add_row():modify to accept nextline in description, return text for next field checking, set placeholdertext as hint for ValueColors; check changes before clicking on 'CLOSE'

Update mseed.py: remove file_info['fileName'] to match with number of parameters for read_waveform_mseed()

adjust condition to correct behavior once the key of row is in data_list; report error when calling get_row_inputs() to report pattern error from param_dialog; adjust messages to make them clearer

param_dialog.py: get_data_list(): modify select query to have default values when null; check value_colors match pattern according to plot_type; update_data(): correct update query missing valueColors field

Multi-thread TPS plot

Closes #2

See merge request !59

Let user double click to read data set

Closes #27

See merge request !67

Fix broken datetime format string

Closes #51

See merge request !66

Improve performance when scrolling in TPS plot

Closes #44

See merge request !69

channel_dialog.py: get_data_list(): modify select query to have default values when null; get_row_inputs() fix typo during PEP8; update_data(): add missing comma in update query

Channel Preferences

See merge request !63

Implement extracting RT130 GPS data

See merge request !60

Fig Error when zoom in the section that has no data

See merge request !64

handling selecting waveform - TPS - RAW

See merge request !62

Implement a dialog to plot and export GPS data

See merge request !53

Extract GPS data for Q330

See merge request !56

remove outer loop in sortData() because only need to take care of the data in the set_key

See merge request !51

Disable shiftclick on TimePowerSquareWidget

See merge request !50