`.desktop` files do not pass gentoo QA validation

[tharvik]

When installing, gentoo gives me a bunch of warning related to the installed .desktop file; that may be of some help.

 * QA Notice: This package installs one or more .desktop files that do not
 * pass validation.
 *
 *      /usr/share/applications/ElectricSheep.desktop: error: file contains key "NoDisplay" in group "Desktop Action InWindow", but
keys extending the format should start with "X-"
 *      /usr/share/applications/ElectricSheep.desktop: error: file contains key "NoDisplay" in group "Desktop Action Root", but keys extending the format should start with "X-"
 *      /usr/share/applications/ElectricSheep.desktop: error: key "Actions" is present in group "Desktop Entry", but the type is "Service" while this key is only valid for type "Application"
 *      /usr/share/applications/ElectricSheep.desktop: error: key "Exec" is present in group "Desktop Entry", but the type is "Service" while this key is only valid for type "Application"
 *      /usr/share/applications/ElectricSheep.desktop: error: key "Terminal" is present in group "Desktop Entry", but the type is "Service" while this key is only valid for type "Application"
 *      /usr/share/applications/ElectricSheep.desktop: error: key "TryExec" is present in group "Desktop Entry", but the type is "Service" while this key is only valid for type "Application"
 *      /usr/share/applications/ElectricSheep.desktop: error: line " " starts with a space. Comment, group and key-value lines should not start with a space. The validation will continue, with the leading spaces ignored.
 *      /usr/share/applications/ElectricSheep.desktop: error: value "electricsheep -window-id %w" for key "Exec" in group "Desktop Action InWindow" contains an invalid field code "%w"
 *      /usr/share/applications/ElectricSheep.desktop: error: value "electricsheep -window-id %w" for key "Exec" in group "Desktop Action Root" contains an invalid field code "%w"
 *      /usr/share/applications/screensavers/electricsheep.desktop: error: value item "Screensaver" in key "Categories" in group "Desktop Entry" is a reserved category, so a "OnlyShowIn" key must be included