Improvements

-The connection dialog now properly hides input boxes that aren't -appropriate for the current connection type.
- Added some more error handling
- Improved connection / read / write timeout experience with TCP connections.
- Added the ability to clear the current values in slave explorer.
- The "Write" button is now hidden instead of disabled when working with a read only source.
- Added minimal about box.

Bam. Connections are saving. We're up and running.