Fix Icon

Use the Cmder icon for the application instead of the Cmd.exe icon
Merge pull request #88 from sc0tt/master

Make cmd use Cmder icon
keep the launcher for winxp
Merge branch 'master' of https://github.com/bliker/cmder
Merge pull request #1 from bliker/master

Pull upstream.
Merge remote-tracking branch 'origin/master' into gitcleanup