Massive update. Preparing for full operativity on PRISMA servers

code/PRISMAwidget/PWpositions.pro

code/PRISMAwidget/PWpositions/PWpositions_cleanup.pro

code/PRISMAwidget/PWpositions/PWpositions_event.pro

code/PRISMAwidget/PWpositions/PWpositions_file.pro

code/PRISMAwidget/PWpositions/PWpositions_slider_box.pro

code/PRISMAwidget/PWwidget.pro

code/PRISMAwidget/PWwidget/PW_autopos.pro

code/PRISMAwidget/PWwidget/PW_closest_ds.pro

code/PRISMAwidget/PWwidget/PW_compute_ds.pro

code/PRISMAwidget/PWwidget/PW_draw_image.pro

code/PRISMAwidget/PWwidget/PW_loadpos.pro

code/PRISMAwidget/PWwidget/PW_open_image.pro

code/PRISMAwidget/PWwidget/PW_update_zoom.pro

code/PRISMAwidget/PWwidget/PWwidget_cleanup.pro

code/PRISMAwidget/PWwidget/PWwidget_draw.pro

code/PRISMAwidget/PWwidget/PWwidget_event.pro

code/PRISMAwidget/PWwidget/PWwidget_file.pro

code/PRISMAwidget/PWwidget/PWwidget_filename.pro

code/PRISMAwidget/PWwidget/PWwidget_fullzoom.pro

code/PRISMAwidget/PWwidget/PWwidget_interpolation.pro