#574 Mavscript edit mode

[A. Vontobel]

Mavscript allows the user to do calculations in a text document.

Mavscript reads the calculation commands in the template. These commands start with the control characters $m and end with one of the following control characters: $i, $o, $io und $n.
The syntax of the calculation commands is actually the algebra syntax of (Yacas)[http://grzegorzmazur.github.io/yacas/].

An example to test that the highlighting is correct: see attached file *.txt.

[A. Vontobel]

Thanks for adding Mavscript edit mode.

Could it be updated to current Mavscript 2.0? See attachment.

[Alan Ezust]

Committed 24450