ChangeLog for edetect_stack
===========================

Version 0.5 - 2019-02-23 (IT)
-------------
	+ Introduce boolean keyword "compress" to gzip files on the
	  fly. Slows down FITS I/O, but significantly reduces disk space
	  requirements. When starting from a minstage > 1, only input files
	  having suffix .gz or .ftz (case insensitive) are recognized as
	  compressed versions of .fits files.
	+ edetect_stack.pl: Read all input files right at the start-up
	  (in order to ease the compression step).
	+ edetect_stack.pl run_sastask(): pass emldetect command to shell
	  script file if the command length exceeds the maximum argument
	  string length (which is 131072 for most linux kernels) and thus
	  could not be executed directly.
        + edetect_stack.pl, input names: Single arguments are recognized
	  as file names now if a file with this name is found.
	Related to the preparations for 4XMM within emldetect:
	+ stack_sourcelist.pl: Change all tests on EXT_ML to EXT(ENT)
	  after introducing extent likelihoods for point-like sources in
	  emldetect.
	+ stack_sourcelist.pl: Estimate pile-up level for the three EPIC
	  instruments. The total pile-up is the maximum of the
	  observation-level values.
	+ Documentation updated.

Version 0.4.2 - 2018-06-11 (IT)
-------------
	+ stack_sourcelist.pl: Updated instrument count rates in summary rows.

Version 0.4.1 - 2018-05-31 (IT)
-------------
        + stack_sourcelist.pl: fixed an index bug affecting EP_HR*
	  in summary rows and a missing conditional on NaNs affecting
	  EP_HR* in per-observation rows (SPR-7489).

Version 0.4 - 2018-03-17 (IT)
-----------
	+ edetect_stack.pl: minimum imagebuffersize of eboxdetect and
	  emldetect is 100.
	+ stack_sourcelist.pl: fix of row indexes in case of only one instrument
	+ tests: even smaller and fewer images, so tests will complete in
	  time also on slower machines

Version 0.3.1 - 2018-02-16 (JVP & EO)
-------------
	+ test/*.txt: Removed GPL disclaimer from these files to avoid being
	interpreted as entries to test scripts.

Version 0.3 - 2018-02-13 (EO)
-----------------------------
	+ This is a new major version of this package including a new GNU
	Public License Text disclaimer required to distribute the SAS source
	code to the Astronomical Community under the terms of the GNU Public
	License. The text as it is shown below is the same that has been 
	included in all SAS source code files.

	ESA (C) 2000-2018 

	This file is part of ESA's XMM-Newton Scientific Analysis System
	(SAS).

	SAS is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	SAS is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.
	   
	You should have received a copy of the GNU General Public License
	along with SAS.  If not, see <http://www.gnu.org/licenses/>.
	---------------------------------------------------------------------


Version 0.2 - 2018-02-09 (IT)
-----------------------------
	+ re-write of stack_sourcelist.pl, second output source list in
	  catalogue format; use of dpssflag, if available (SSC internally)
	+ automatized coordinate determination from attitude files: ignore
	  NaNs and discard positions more than 2 degrees off their median
	+ updated check on overlapping observations
	+ skip runeboxdetectstack if only one input observation is provided

Version 0.1.1 - 2016-10-20 (IT)
--------------------------
	+ test harness completed. Check whether tasks are run and output
	  source lists exist.
	+ minor code updates

Version 0.1 - 2016-10-07 (IT)
------------------------
        + Initial commit, comprising the perl files edetect_stack.pl and
	  stack_sourcelist.pl and a minimal test whether the edetect_stack
	  can be started. For details on the structure of the task,
	  consult the draft documentation.