Add all file and non-specific scraping actions as menu items. Rename top menu names to single word names.
Add Help menu including About box and website and bug-report links
Add an option to hide the bottom panel containing action buttons to maximize vertical space. Those actions are still available through mainmenu/shortcuts except specific scrapers (to do later)
Merge pull request #29 from DoctorD1501/menu-refactor

Menu refactor