Description of problem:
When starting xpra, I see this message:
```
Warning: failed to import GStreamer:
 1.0 failed with: No module named gi
```

After installing python-gobject, I see this message:
```
Warning: failed to import GStreamer:
 1.0 failed with: Namespace Gst not available for version 1.0
```

I thus install gstreamer1-plugins-base and gstreamer1-plugins-good and see the expected output:
```
2016-02-18 18:33:03,003 GStreamer version 1.7 for Python 2.7
```

Thus in the specfile, these lines:
Requires:       gstreamer gstreamer-python
Requires:       gstreamer-plugins-base gstreamer-plugins-good

should probably be replaced with:
Requires:       gstreamer1 python-gobject
Requires:       gstreamer1-plugins-base gstreamer1-plugins-good

Version-Release number of selected component (if applicable):
0.16.1-2.fc24

How reproducible:
Every time

Steps to Reproduce:
1. Try to start xpra with python-gobject, gstreamer1-plugins-base and gstreamer1-plugins-good not installed

Actual results:
s.a.

Expected results:
s.a.

Additional info: