Alacarte forgets to put .png or .svg in Desktop Entry file name

[Sergio Benjamim]

When you try to pick an icon for your custom item menu in Alacarte, it forgets to put .png or .svg in Desktop Entry file name, so in Unity or others menus the item menu icon does not appear.

Example: Try to create an Nvidia Settings item menu (after install bumblebee)

1. Open Alacarte
2. Click in "System Settings" and click in "New Item"
3. Name: "Nvidia Settings", Command: "optirun -b none nvidia-settings -c :8", and Icon: /usr/share/pixmaps/nvidia-319-updates-settings.png
4. Try to find in Unity, there is the entry, but no icon
5. Open ~/.local/share/applications/alacarte-made.desktop
6. Then in the Icon Entry: Icon=/usr/share/pixmaps/nvidia-319-updates-settings

So, if I change Icon Entry to Icon=/usr/share/pixmaps/nvidia-319-updates-settings.png , and logout and login, the icon item menu works fine.

I has this problem with Scilab too, or any other that I need to pick an icon for item menu.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: alacarte 3.10.0-1
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Fri Dec 13 20:46:59 2013
InstallationDate: Installed on 2013-12-13 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alacarte
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.