Added support for Max 2017 (and probably earlier)

[Trebor777]

Hello, I created a method to get MaxVersion used in mxs_try_catch_errors method, in order to set a new flow for version < 2018. Reordered error messages for consistency. (error before stack). Used formatted strings instead of string.Format.

Tested on max 2017 et 2023.

[JeffHanna]

Please re-submit with tabs instead of spaces. Match the source file as you pulled it.

[Trebor777]

Hello, I've converted back to tabs.