Version check for Additional Languages

[scottclowe]

We should check if the user is exporting from a version of MATLAB which supports the language being exported due to the following scenario:

• User is in older version of MATLAB which does not support all the languages in the most up to date version. (Language ABC is not included in their version.)
• User imports scheme X which contains additional languages, with every language specified in the .prf file (including ABC). Now user has settings saved in matlab.prf for languages which their GUI will not present.
• User designs a new scheme for MATLAB syntax.
• User ignores advised instructions for the creation of a scheme with additional languages (which specify to create MATLAB syntax, export, import, fix additional languages) and designs the additional languages colours without importing the MATLAB syntax as a base.
• User exports the colour scheme to Y.prf, with additional languages included. The exported scheme will have colours for ABC from scheme X because these settings will exist in matlab.prf, but they do not match the background etc specified for their scheme, Y.
• User distributes their scheme, Y. Others import it into up-to-date MATLAB. Colours for ABC syntax do not work.

This scenario will presumably happen eventually, but it is not a high priority. I anticipate the majority of designers will not do anything for the Additional Languages.

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[scottclowe]

In order to do this, we first need to know which MATLAB versions introduced support for which language syntax. As far as I am aware, MathWorks do not indicate this in their changelog.