added status bar to main window

Signed-off-by: Adam McNicol <adamsorders@mac.com>
fixed issue where switching between tables would result in the table shown in browse table reverting to first table in db

Signed-off-by: Adam McNicol <adamsorders@mac.com>
Add menu option to refresh database and about menu

Signed-off-by: Adam McNicol <adamsorders@mac.com>