Closes #21

• Reload action when focused on the table list retriggers the Initialize event, listing tables and pushing a new view
• Reload action when focused on table details will reload just the description for that table
• Added Reload to the help items, matched the priorities to what's in the table view (behind Copy)

Reloading on the table list will reset the selected item (which is consistent with the table view). It will also clear the quick filter if used. It could re-apply the quick filter after the reload, but that would probably require this not to re-use the Initialize event, let me know of your thoughts.