We replace the IPython method that actually executes the entered code
with one that then calls the original one on a separate thread so that
we can continue to process GUI events while the command runs.

Before a system installed one.

This is in place of importing the individual mantid & mantidplot
modules and means that code completion in the 'F3 script window'
still works.

Have left the QTextEdit (that was previously only used temporarily)
as a placeholder.

As commented in the code the Poco & Windows APIs are not reliable enough
to check for write permissions on a directory.
Refs #8080

Russell Taylor authored 11 years ago and Zhou, Wenduo committed 11 years ago

Previously, even if the user had chosen something else it would revert
to scan_index if the dataset was being filtered.

Russell Taylor authored 11 years ago and Zhou, Wenduo committed 11 years ago

Garrett says that this is the one he would use most often.

NOT Re #6806 - I just happened to spot it when I was working on that ticket.

This replaces having to give an absolute time in UTC (though that's still
the format used by the underlying algorithm).
This is more user-friendly and compact, though I'd expect this to be an
extremely rarely-used option in any case.