isis-1.5.0 released

Version 1.5.0 of ISIS has been released.

This version of ISIS provides built-in support for parallel
processing on multi-core computers.  ISIS now performs the
following tasks in parallel using all available cpus:

 * Model fits using plm, a parallel implementation of the
   Levenberg-Marquardt optimization method.
 * Monte-Carlo parameter search, using fit_search
 * Sets of single parameter confidence limit searches, with
   automatic refits upon discovery of a new best-fit, using
   conf_loop
 * 2D confidence contour maps, using conf_map_counts or
   conf_map_flux.

For more details, see:
  http://space.mit.edu/cxc/isis/multicore.html

This release also includes a number of new functions based on
contributions by Mike Nowak. These new functions (group,
group_bin, ignore_values, notice_values) provide more versatile
spectral grouping and ignore/notice functionality.

The isis-1.5.0 source code is available from:
  http://space.mit.edu/cxc/isis/download.html

Installation instructions are available from
  http://space.mit.edu/cxc/isis/install.html
and are also included with the source code.

Thanks,
-John
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