Draft: zero pad discontiguous segments for omega scans

partly resolves #183 (closed)

(This will likely taking care of by a new version of gwpy)

gwcelery/tasks/detchar.py

@@ -135,7 +135,7 @@ def make_omegascan(ifo, t0, durs):
     cache = create_cache(ifo, long_start, long_end)
     strain_name = app.conf['strain_channel_names'][ifo]
     try:
-        ts = TimeSeries.read(cache, strain_name,
+        ts = TimeSeries.read(cache, strain_name, pad=0.0,
                              start=long_start, end=long_end).astype('float64')
         # Do q_transforms for the different durations
         qgrams = [ts.q_transform(