qipackage: raise when url and directory are both specified
qipackage: raise when url and directory are both specified

Change-Id: I704b64f034de24d3b794ce7da44daaa8aadf1cf0
Reviewed-on: http://gerrit.aldebaran.lan/56651
Tested-by: gerrit
Reviewed-by: smartin <edaf33f3e53483e687d304aa81a03bb5a17b9ddf@aldebaran-robotics.com>
Reviewed-by: dmerejkowsky <1e4b13000fa8777df4cefd2fd8215187e3deb062@aldebaran-robotics.com>

aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild