from -1 to 0
re #13936

 1. Change the filename reported for nexus files if xml contained within
 1. Stop saving the filename to nexus processed files
 1. removed some unused includes

Still to do:
 1. cache SHA1 checksum if needed
 1. Manually test
 1. update documentation
 1. investigate this error:

ctest -C Debug -J 4 -R LoadEventNexusTest -V

 548: LoadParameterFile-[Error] Bad path syntax: C:\Mantid\Code\Mantid\instrument
\C:\Users\rrc79113\AppData\Roaming\mantidproject\mantid\instrument\HYSPECA_Param
eters.xml. Unable to parse File: in C:/Mantid/Code/Mantid/instrument//C:\Users\r
rc79113\AppData\Roaming\mantidproject\mantid\instrument\HYSPECA_Parameters.xml
548: LoadIDFFromNexus-[Notice] Instrument parameter file: C:\Users\rrc79113\AppD
ata\Roaming\mantidproject\mantid\instrument\HYSPECA_Parameters.xml not found or
un-parsable. Instrument parameter file: C:/Mantid/Code/Mantid/instrument/HYSPECA
_Parameters.xml has been loaded

re #11818

Refs #10663

Use an optional entry number parameter instead of counting workspace group entries in the file. This was the main bottleneck acording to the previous
POGO report. Seems to have generated a massive speedup. Can save as WG of size 512 in < 8 seconds rather than 138 seconds as previously.

A few issues fixed here. Firstly. I found that the algorithm was failing
when thrown a very large group workspace. This turned out to be because we
needed to close the group within the doExec call. A group i always opened,
so it is necessary to close it.

The second thing done is to fix SaveNexus so that it will pass through
group workspaces intact to SaveNexusProcessed. Under the previous
mechanism, this would not have happened, because the generic Algorithm
group processing code would have exploded out the individual workspaces.

Looks like there's an issue with the m_filehandler not being initialized properly for some reason!

Make the same methods available for group processing as well as individual workspace processing.

The converted text is stored in separate .rst files in the docs directory.
Refs #9562

SaveNexus and SaveNexusProcessed wouldn't append a record to the history.
This commit fixes that issue and leaves a record on the input workspace so the result is that we get a
complete history, but we lose the execution start time and duration.

Names will attempt to match with a stem on load.
If not the stored name will be used.

Backwards compatible with older nexus files.

Refs #7764

It was always logging (to debug) that it wasn't doing anything. No
it is a bit louder about it.

LoadNexusProcessed is broken on windows along with 4 system tests.

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>

to WorkspaceHistory, for code reuse

Still need to modify LoadNexusProcessed to generate SpecialWorkspace2d.

so changed all algorithms that used it.

Touches nearly everything unfortunately but is necessary.

in DateAndTime methods.

4 tests fail at this point