Ticket #196 (new enhancement)

Description

Right click on a module to permanently remove it from startstop. (Maybe with an X icon followed by the word "Delete" or something.)

0) ask the user if they really want to permanently delete this module
1) stopmodule the module
2) remove it from startstop_X.d
3) remove it from the GUI status window and graph window

Do not remove the module's .d file from the params directory, so that in #82 the Add Wizard could later say "You want to add this module. I see there's a .d file that exists in the EW_PARAMS directory, do you want to use the existing parameter file, or do you want to start with a fresh one from the distribution's params directory?"