Mercury 1.3

Hello,

Thanks for publishing this great software. Here are some suggestions for future versions.

Databases:
- Option to define more port numbers than those currently in the "Port numbers used"-list. I know several databases that use other ports than these. (Optionally an ability to choose port per database)
- Ability to specify other record types per database than those currently in the list (i.e. other marc flavors than marc21, chances are that they could work fine)

Searching:
- Ability to right click a record in the list and choose "Export this record"