SNMP GUI - Jangle 0.03

A little bit more work (thanks to all for comments and encouragement!) and a new version of Jangle is available.

Some highlights:

• Prototype tree view
• User-defined MIB location (from the File menu)
• Some error handling
• Work done in the background for faster startup and better responsiveness
• The graph has the human-readable name if we can rather than the numeric OID

Enjoy!