gw_summary_pipe: only fix X509/KRB5 for vanilla

    - local universe has access to /tmp, so don't need to copy X509 cert
      and kerberos credentials cache
gw_summary: use extensive FFT planning

    - use simple plans for short runs, otherwise do the fancy one
get_triggers: check files in cache exist
builtin_plots: simple labelling changes
SummaryTab: minor bug fixes
SummaryTab.process_state: single process one plot
data: use new channel.type
data: index channels in globalv dicts by ndsname
data.get_timeseries: feed into get_timeseries_dict
get_timeseries_dict: set channel ctype as 'adc'

    - most channels are 'adc', specifying vastly speeds up frame reading
get_spectrogram: use multiprocess, minor fixes
SummaryTab.process_state: use spectrogram mp
builtin_plots: fix channel reference