This update to the Remeis git-repository of useful scripts, made by

Mike Nowak (mnowak@space.mit.edu), sinks up the source code in
./isiscripts/src/Mike with my personal repositories, where I have been
keeping and editing master versions of my scripts.

In the case of my utility .isisrc_* functions, especially the
.isisrc_fancy_plots functions, the differences to previous versions
stored in the Remeis repository should be minor.

However, this represents a major overwrite of the sitar.sl file.  It
updates from a 2008 version to a 2014 version.  Major changes include
syntax changes to the various functions so that they use qualifiers
instead of function arguments.  A few new functions have been added
(Gregory-Loredo variability algorithm, binning events-based
lightcurves).  A number of bug fixes have been introduced.  This
version is a few bug fixes past what's currently available on the
SITAR web page.

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Here is the commit log from my own internal version:

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Wed May 14 16:30:00 2014 -0400

       Fixing some problems with sitar_pfold_evt

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Thu Apr 24 00:00:37 2014 -0400

       Cleaning up some typos in the recent changes...

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Wed Apr 23 23:57:32 2014 -0400

       Changed sitar_pfold_rate to allow custom phase bins.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Wed Apr 23 23:32:57 2014 -0400

       Added the ability to do custom phase bins in sitar_pfold_event.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Apr 8 12:33:59 2014 -0400

       Fixed a bug in the sitar_rebin_rate function, pointed out to me by
       Maria Hirsch at Remeis.  The weighted binning wasn't being done
       properly.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Wed Sep 18 10:08:00 2013 -0400

       Hmmm, I'm not sure what's going on at this point...

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Thu Mar 28 15:51:48 2013 -0400

       Beginning to revise Bayesian Blocks to take qualifiers, hopefully be
       faster, and to have a max likelihood posterior option for binned mode.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Thu Aug 2 11:42:29 2012 -0400

       No idea what's been modified at this point...

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Oct 4 23:36:22 2011 -0400

       Added a function, sitar_bin_events to create a rate lightcurve from
       events and good time intervals.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Fri Aug 19 07:40:55 2011 -0400

       Cleaned up some tiny mistakes in the file.  This is the official
       v1.0.0 release.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Aug 16 16:40:42 2011 -0400

       Newline added at end of file.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Aug 16 16:38:17 2011 -0400

       Added the Gregory-Loredo Bayesian Blocks routine to SITAR, and am now
       calling this version 1.0.0.  Many backwards incompatabilities in these
       routines.  It will go onto the web once the web pages are updated.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Aug 16 10:06:53 2011 -0400

       Finished converting routines over to qualifier inputs, with the
       exception of Bayesian blocks.  Too complicated to touch that at this
       point.  A number of the FFT routines have no qualifier inputs, since
       that seemed easier.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Aug 16 00:00:52 2011 -0400

       Further fixes to sitar, specifically cleaned up the new
       sitar_pfold_events, to make sure the phase folded GTI exposures didn't
       have any spurious bins that got off by one bin due to roundoff errors.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Sat Aug 13 19:44:29 2011 -0400

       Continuuing to move sitar over to qualifiers, and clean up some functions.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Thu Aug 11 17:47:41 2011 -0400

       Added a Period Folding based upon events to SITAR, and did some major
       reworking of the output messages on all of the routines.  Unofficial
       0.9.4 release.  Probably some more cleaning up will happen before this
       hits the web site.

       -Mike Nowak, Aug. 11, 2011

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Thu Jul 28 11:45:40 2011 -0400

       Removed reference to Sherpa from SITAR, and removed version numbers on
       individual subroutines, since this is now all under git control.  Some
       other minor edits here and there.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Jul 26 16:03:02 2011 -0400

       Finally bringing version control to SITAR...

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This also represents a minor upgrade to the ISIS Emcee Hammer routine,
covered by the following changes:

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   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Tue Sep 9 12:00:11 2014 -0400

       Updated the code so that chain_hist2d and vec_hist2d now use
       plot_conf, instead of plot_contours.  The former takes a little bit of
       munging of the contours to make them look like typical chi^2 contours.
       However, this now allows one to set line widths, colors, and styles on
       the contours.  (plot_contours has something of a bug, where line
       styles don't seem to take.)

       There's also an earlier update from v0.8.4 -> v0.8.5, but I forget
       what that is.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Wed Apr 30 15:10:24 2014 -0400

       Added a qualifier to plot the location of the "best fit" value in
       histograms, as opposed to the peak of the probability distribution.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Thu Jan 23 17:46:04 2014 -0500

       Reordered some lines in the setup of the initial walkers, so that we
       don't accidentally go over min/max bounds.

   Author: Michael Nowak <mnowak@space.mit.edu>
   Date:   Wed Nov 20 15:47:33 2013 -0500

       v. 0.8.2: Fixed a bug in chain_hist[2d], where I forgot to put quotes
       around xrange/yrange in a qualifier call.

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