begin improving handling of missing databases and connections
	modified:   coords_and_position.py
	modified:   create_db.py
	modified:   definitions/midvatten_defs.py
	modified:   drillreport.py
	modified:   import_data_to_db.py
	modified:   metadata.txt
	modified:   midvatten.py
	modified:   midvatten_utils.py
	modified:   midvsettings.py
	modified:   obs_lines_form_logic.py
	modified:   obs_points_form_logic.py
	modified:   piper.py
	modified:   sectionplot.py
	modified:   stratigraphy.py
	modified:   stratigraphy_form_logic.py
	modified:   tsplot.py
	modified:   ui/secplotdockwidget_ui.py
	modified:   ui/secplotdockwidget_ui.ui
	modified:   w_flow_calc_aveflow.py
	modified:   w_flow_form_logic.py
	modified:   w_levels_form_logic.py
	modified:   wlevels_calc_calibr.py
	modified:   xyplot.py