-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

Previously, a check was done to ensure that all initial positions of the
walkers would yield a non -np.inf prior. This extends this to also check
the likelihood evaluations. The method is also simplified partially

Partially resolves issues in #6

- Adds labels of each stage along the top
- Fixes bug when re-running
- Improves column title of run_setup table

Previously, we used the emcee.PTSampler, but this has been removed from
the master branch of emcee (see discussion here
https://github.com/dfm/emcee/issues/236) and a fork, ptemcee has been
developed. Testing shows this is equivalent (after some changes in the
interface) and perhaps better as it contains the adaptive temperature
ladders developed by Will Vousden (the maintainer of ptemcee)

 This removes the convergence testing ideas previously implemented
 (currently juts commented, but later to be fully removed). These are
clearly not useful without further study, which in itself would be a
better time to develop an implementation.

- 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

- Remove minStartTime, maxStartTime and outdir as default arguments
- Adds notes ot documentation on which arguments are optional
- Change log-level on some command line calls that dont' matter
- Reorganise the tests performed after loading the data
- If minStartTime and maxStartTime are None, set them using
  SFT_timestamps
- Remove default labels from plot_twoF_cumulative
- If add_pfs is called, call generate_loudest automatically
- Save min/maxStartTime in pickle and load if required

- Previously, the predict_fstat directed lalapps_PredictFstat to write
  the output to /tmp/fs. This caused failure when /tmp could not be
  written to so instead it writes it to a file in the working directory
  and then removes it

- Allow read_par to have strings in the value
- Fix bug in setting detector constraints
- If fkdot not given, attempt to create it

- Adds basic_setup method to do simple tasks like make directories and
  set start and end times
- Remove doubled predict_fstat code