-to later allow for CUDA implementation
 -some optional-import acrobatics
  to fail gracefully if a module (especially CUDA)
  is not available
 -as of this commit, nothing beyond lal implemented yet

Previously, this functionality was part of GridSearch, this splits this
into a separate subclass to ease future development.

Previously this returned True regardless of the value of
transientWindowType when really we want to also check if it is not None

 -new output: full (t0,tau) Fstat map,
  if bands in those params are searched
 -one file per Doppler grid point

Closes #9

 -replaces boolean 'transient' flag
 -window type [none,rect,exp]
  for both injections and searches
 -t0, tau bands for gridsearch,
  single-point use (e.g. MCMC) should be unchanged

- Adds back in array method for caching data

- Just run separate 2D and 1D searches for each panel itself
- Some additional clean up of the basic GridSearch method

Fixes #4 .

- Provide a function in the BaseSearchClass to read in the ephemeris
  files
- Some clean up of docstrings

If detectors is not specified, det=None, then in the outfile simply use
'NA' to indicate this.

This renames the input sftfilepath to sftfilepattern and adds
documentation on how that should be used, i.e. a colon separated list of
wildstring or exact matches. In globbing for all matches, the colon
split is added in. sftfilepath is still used by `Writer` since
an exact path is known.

Gregory Ashton authored Jul 17, 2017 and Gregory Ashton committed Jul 17, 2017

Previously, each search class named its own output file. This provides a
function `set_out_file` in the top-level class which sets the `out_file`
attribute to be used.
- Adds class name to the out_file for clarity
- Add detectors used

Note - conflict resolved whilst cherry-picking

Previously, each search class named its own output file. This provides a
function `set_out_file` in the top-level class which sets the `out_file`
attribute to be used.
- Adds class name to the out_file for clarity
- Add detectors used