Added menu items for paper QSLs, and menus for eQSL.cc and LoTW. Need to be prettied up with some CSS.
Neglected to add to the edit function in the logbook_model, also changed the name of the selector for eQSL.cc receive, to match the convention in the rest of the selectors.
Merge pull request #124 from skweeker/edit_qso_qsl_dropdowns

Added menu items for paper QSLs, and menus for eQSL.cc and LoTW in the edit section