feed:// URI's do not work from a browser with gvfs

With gvfs, URL handling is currently enabled through the /usr/share/applications/*.desktop files. The one in this package is missing the MimeType= line and the argument in the Exec= line for this to work. Here is the one in Oneiric:

[Desktop Entry]
Name=Evolution RSS
GenericName=Evolution RSS Reader
Comment=Evolution plugin that enables Evolution Mail to display rss feeds.
Exec=/usr/bin/evolution-import-rss
Icon=evolution
StartupNotify=true
Terminal=false
Type=Application
Categories=Network;News;
#NoDisplay=true
#OnlyShowIn=News;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=evolution-rss
X-GNOME-Bugzilla-Component=BugBuddyBugs
X-GNOME-Bugzilla-Version=0.2.90
X-Desktop-File-Install-Version=0.18
X-Ubuntu-Gettext-Domain=evolution-rss

Here it is, fixed:

[Desktop Entry]
Name=Evolution RSS
GenericName=Evolution RSS Reader
Comment=Evolution plugin that enables Evolution Mail to display rss feeds.
Exec=/usr/bin/evolution-import-rss %U
MimeType=x-scheme-handler/feed
Icon=evolution
StartupNotify=true
Terminal=false
Type=Application
Categories=Network;News;
#NoDisplay=true
#OnlyShowIn=News;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=evolution-rss
X-GNOME-Bugzilla-Component=BugBuddyBugs
X-GNOME-Bugzilla-Version=0.2.90
X-Desktop-File-Install-Version=0.18
X-Ubuntu-Gettext-Domain=evolution-rss