Patches for PPTP plugin

[Craig Box <craig dubculture co nz>]

Hi,

There are a number of patches on the GNOME bugzilla for the PPTP VPN
component currently, including three easy ones for HIGification of the
dialog boxes and one for fixing a memory leak.

Could these please be committed to SVN?  I am happy to rebase the
patches for stateless MPPE and PAP authentication against the new
HIGified dialog if required.

Regards,
Craig