New type of IntArrayProperty

[Peter Peterson]

In data loaders that understand partial files there is a consistent need to specify a list of spectra. Currently this is done by using three properties: integer min, integer max, array<int>. It would be much better if there was a single property that simply took a range of integers, rather than a comma separated list, and returned an vector of integers as a result. To handle ranges where negative numbers are allowed the syntax could use commas "," and colons ":". Some examples:

1:10000
-27:-24
1,2,5:20

This would remove the need for having three separate properties and all of the fancy logic associated with putting them together in to a single array of spectra numbers.

[Nick Draper]

I'd be tempted to allow - to be used as a range seperator as well, so 12-24.

I know this will not be so pretty for negative numbers, -12--24, but people can always choose to use the colon.

[Peter Peterson]

(In [4972]) Made the exception message a bit clearer as to what is wrong. Refs #1303.

[Peter Peterson]

(In [4979]) Reworked the code to reuse more of it while adding the functionality of using either dash or colon to specify ranges of ints and uints. Fixes #1303.

[Nick Draper]

moved to verify status

[Nick Draper]

Moved to verify state

[Mathieu Doucet]

(In [5898]) Added a few more tests to cover the list of possible uses. Closes #1303

[Stuart Campbell]

This ticket has been transferred to github issue ​2150