install gnome menu in setup

setup.py

@@ -32,3 +32,16 @@ setup(name = "Electrum",
     url = "http://ecdsa/electrum",
     long_description = """Lightweight Bitcoin Wallet""" 
 )
+
+if __name__ == '__main__':
+    import sys,os
+    if len(sys.argv)>1 and sys.argv[1]=='install':
+        cmd = "sudo desktop-file-install electrum.desktop"
+        try:
+            print cmd
+            os.system(cmd)
+        except:
+            pass
+
+
+