Changes made to session configurations are not picked up in ptman until a restart.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Open ptman
2. Right click task bar icon
3. Click tunnels
3. Open putty
4. Load a session
5. Change the session name
6. Hit save
7. Right click ptman task bar icon
8. Click tunnels

What is the expected output? What do you see instead?
The new session isn't listed.

What version of the product are you using? On what operating system?
PuTTY Tunnel Manager 0.9.1 
Windows XP SP3

Please provide any additional information below.
None

Original issue reported on code.google.com by gavmbr...@googlemail.com on 28 Oct 2009 at 10:47