show server information in window title

[tommywu]

show current connected server information in window title.

[tommywu]

show server information in window title

[tommywu]

also show information for quickconnect
File Added: filezilla_3.0.1_title_show_server.patch

[tommywu]

File Added: filezilla_3.0.1_title_show_server.patch

[tommywu]

also show information for quickconnect

[codesquid]

I've committed a modified version:

- The correct method to set the window title is SetWindowTitle
- There's no need to add the same code in three different places, when in all of them the same method gets called. Added the title setting in CState::Connect instead
- There's no guarantee that the update handler will be called if e.g. the window is minimized. Handling the disconnect event in CServer::SetServer is a proper solution